First

Journals

In Progress

  1. Ao Zhou, Ni Chen, Haichao Wang, and Guohai Situ. Analysis of Fourier ptychographic microscopy with half of the captured images. Submitted, 2018.  [ [bibtex] | link ]
    @misc{AZhou_2018_JOPT,
    title = {Analysis of {F}ourier ptychographic microscopy with half of the captured images},
    author = {Ao Zhou and Ni Chen and Haichao Wang and Guohai Situ},
    journal = {},
    volume = {},
    number = {},
    pages = {},
    year = {2018},
    doi = {},
    ifactor = {},
    jcr = {},
    note = {},
    citation = {0},
    howpublished = {Submitted},
    link = {http://arxiv.org/abs/1802.08156},
    correspond = {Ni Chen},
    }

  2. Ao Zhou, Wei Wang, Ni Chen, Edmund Y. Lam, Byoungho Lee, and Guohai Situ. A fast and robust method to eliminate the global shift of LED array in Fourier ptychographic microscopy. Submitted, 2018.  [ [bibtex] | link ]
    @misc{AZhou_2018_OE,
    title = {A fast and robust method to eliminate the global shift of LED array in {F}ourier ptychographic microscopy},
    author = {Ao Zhou and Wei Wang and Ni Chen and Edmund Y. Lam and Byoungho Lee and Guohai Situ},
    journal = {},
    volume = {},
    number = {},
    pages = {},
    year = {2018},
    doi = {},
    ifactor = {},
    jcr = {},
    note = {},
    citation = {},
    howpublished = {Submitted},
    link = {https://arxiv.org/abs/1803.00395},
    correspond = {Ni Chen},
    }

Published

  1. Haichao Wang, Ni Chen, Shanshan Zheng, Jingdan Liu, and Guohai Situ. “Fast and high resolution light field acquisition using defocus modulation”Applied Optics, 57(1):A250–A256, 2018.  [ [bibtex] | [DOI] | Q2 : 1.65 ]
    @Article{HCWang_2018_AO,
    title = {Fast and high resolution light field acquisition using defocus modulation},
    author = {Haichao Wang and Ni Chen and Shanshan Zheng and Jingdan Liu and Guohai Situ},
    journal = {Applied Optics},
    volume = {57},
    number = {1},
    pages = {A250--A256},
    year = {2018},
    doi = {10.1364/AO.57.00A250},
    ifactor = {1.65},
    jcr = {Q2},
    citation = {0},
    note = {},
    correspond = {Ni Chen},
    }

  2. Ni Chen, Zhenbo Ren, Dayan Li, Edmund Y. Lam, and Guohai Situ. “Analysis of the noise in back-projection light field acquisition and its optimization”Applied Optics, 56(13):F20–F26, 2017.  [ [bibtex] | [DOI] | Q2 : 1.65 | 7 ]
    @Article{Chen_2017_AO,
    title = {Analysis of the noise in back-projection light field acquisition and its optimization},
    author = {Ni Chen and Zhenbo Ren and Dayan Li and Edmund Y. Lam and Guohai Situ},
    journal = {Applied Optics},
    volume = {56},
    number = {13},
    pages = {F20--F26},
    year = {2017},
    doi = {10.1364/AO.56.000F20},
    ifactor = {1.65},
    jcr = {Q2},
    citation = {7},
    correspond = {Ni Chen},
    }

  3. Caihong Wang, Ni Chen, Yingjie Yu, and Guohai Situ. “Phase-only Hologram Encoding with One-dimensional Grating Function”Acta Optica Sinica, 37(09):0909001-1–0909001-6, 2017.  [ [bibtex] | [DOI] | EI ]
    Cover Image, Highlight and Outstanding paper in Vol. 37, No. 09 of Acta Optica Sinica
    @Article{CHWang_2017_AOS,
    title = {Phase-only Hologram Encoding with One-dimensional Grating Function},
    author = {Caihong Wang and Ni Chen and Yingjie Yu and Guohai Situ},
    journal = {Acta Optica Sinica},
    volume = {37},
    number = {09},
    pages = {0909001-1--0909001-6},
    year = {2017},
    doi = {10.3788/AOS201737.0909001},
    ifactor = {},
    jcr = {EI},
    note = {Cover Image, Highlight and Outstanding paper in Vol. 37, No. 09 of Acta Optica Sinica},
    citation = {0},
    correspond = {Ni Chen},
    }

  4. Ni Chen, Zhenbo Ren, Haiyan Ou, and Edmund Y. Lam. “Resolution enhancement of optical scanning holography with a modulated point spread function”Photonics Research, 4(1):1-6, 2016.  [ [bibtex] | [DOI] | Q1 : 4.679 | 8 ]
    @Article{Chen_2016_PR,
    title = {Resolution enhancement of optical scanning holography with a modulated point spread function},
    author = {Ni Chen and Zhenbo Ren and Haiyan Ou and Edmund Y. Lam},
    journal = {Photonics Research},
    volume = {4},
    number = {1},
    pages = {1--6},
    year = {2016},
    doi = {10.1364/PRJ.4.000001},
    ifactor = {4.679},
    jcr = {Q1},
    citation = {8}
    }

  5. Ni Chen, Zhenbo Ren, and Edmund Y. Lam. “High resolution Fourier hologram synthesis from photographic images through computing the light field”Applied Optics, 55(7):1751-1756, 2016.  [ [bibtex] | [DOI] | Q2 : 1.65 | 7 ]
    Top Downloaded Article on Imaging Systems from Applied Optics and Optics Express in 2015-16
    @Article{Chen_2016_AO,
    title = {High resolution {F}ourier hologram synthesis from photographic images through computing the light field},
    author = {Ni Chen and Zhenbo Ren and Edmund Y. Lam},
    journal = {Applied Optics},
    volume = {55},
    number = {7},
    pages = {1751--1756},
    year = {2016},
    doi = {10.1364/AO.55.001751},
    ifactor = {1.65},
    jcr = {Q2},
    citation = {7},
    note = {Top Downloaded Article on Imaging Systems from Applied Optics and Optics Express in 2015-16},
    }

  6. Ni Chen, Jiwoon Yeom, Keehoon Hong, Gang Li, and Byoungho Lee. “Fast Converging Algorithm for Wavefront Reconstruction based on a Sequence of Diffracted Intensity Images”Journal of the Optical Society of Korea, 18(3):217-224, 2014.  [ [bibtex] | [DOI] | Q3 : 1.179 | 2 ]
    @Article{Chen_2014_JOSK,
    title = {Fast Converging Algorithm for Wavefront Reconstruction based on a Sequence of Diffracted Intensity Images},
    author = {Ni Chen and Jiwoon Yeom and Keehoon Hong and Gang Li and Byoungho Lee},
    journal = {Journal of the Optical Society of Korea},
    volume = {18},
    number = {3},
    pages = {217--224},
    year = {2014},
    doi = {10.3807/JOSK.2014.18.3.217},
    ifactor = {1.179},
    jcr = {Q3},
    citation = {2}
    }

  7. Ni Chen, Jiwoon Yeom, Jae–Hyun Jung, Jae-Hyeung Park, and Byoungho Lee. “Resolution comparison between integral–imaging–based hologram synthesis methods using rectangular and hexagonal lens arrays”Optics Express, 19(27):26917-26927, 2011.  [ [bibtex] | [data] | [DOI] | Q1 : 3.587 | 23 ]
    @Article{Chen_2011_OE,
    title = {Resolution comparison between integral--imaging--based hologram synthesis methods using rectangular and hexagonal lens arrays},
    author = {Ni Chen and Jiwoon Yeom and Jae--Hyun Jung and Jae-Hyeung Park and Byoungho Lee},
    journal = {Optics Express},
    volume = {19},
    number = {27},
    pages = {26917--26927},
    year = {2011},
    doi = {10.1364/OE.19.026917},
    ifactor = {3.587},
    jcr = {Q1},
    citation = {23},
    data = {http://pc.cd/OYiitalK},
    }

  8. Ni Chen, Jae-Hyeung Park, and Nam Kim. “Parameter analysis of integral Fourier hologram and its resolution enhancement”Optics Express, 18(3):2152-2167, 2010.  [ [bibtex] | [data] | [DOI] | Q1 : 3.753 | 33 ]
    @Article{Chen_2010_OE,
    title = {Parameter analysis of integral {F}ourier hologram and its resolution enhancement},
    author = {Ni Chen and Jae-Hyeung Park and Nam Kim},
    journal = {Optics Express},
    volume = {18},
    number = {3},
    pages = {2152--2167},
    year = {2010},
    doi = {10.1364/OE.18.002152},
    ifactor = {3.753},
    jcr = {Q1},
    citation = {33},
    data = {http://pc.cd/9n6},
    }


Conferences

  1. Ao Zhou, Wei Wang, Ni Chen, and Guohai Situ. “Fast light source misalignment correction of Fourier ptychographic microscopy.” In Digital Holography & 3–D Imaging, Orlando, USA, May 2018.  [ [bibtex] | EI ]
    @Conference{Zhou_2018_DH,
    title = {Fast light source misalignment correction of
    {F}ourier ptychographic microscopy},
    author = {Ao Zhou and Wei Wang and Ni Chen and Guohai Situ},
    booktitle = {Digital Holography \& 3--D Imaging},
    pages = {},
    month = {May},
    year = {2018},
    address = {Orlando, USA},
    doi = {},
    jcr = {EI},
    note = {}
    }

  2. Ao Zhou, Ni Chen, and Guohai Situ. “Analysis of Fourier ptychographic microscopy with half reduced images.” In International Conference on Optical Instruments and Technology 2017, Beijing, China, Jan. 2018.  [ [bibtex] | [DOI] | EI ]
    @Conference{Zhou_2017_OIT,
    title = {Analysis of Fourier ptychographic microscopy with half reduced images},
    author = {Ao Zhou and Ni Chen and Guohai Situ},
    booktitle = {International Conference on Optical Instruments and Technology 2017},
    pages = {},
    month = {Jan.},
    year = {2018},
    address = {Beijing, China},
    doi = {10.1117/12.2287075},
    jcr = {EI},
    }

  3. Haichao Wang, Ni Chen, Jingdan Liu, and Guohai Situ. “Light field imaging based on defocused photographic images.” In Digital Holography & 3–D Imaging, Jeju, Korea, May 2017.  [ [bibtex] | [DOI] | EI ]
    @Conference{Wang_2017_DH,
    title = {Light field imaging based on defocused photographic images},
    author = {Haichao Wang and Ni Chen and Jingdan Liu and Guohai Situ},
    booktitle = {Digital Holography \& 3--D Imaging},
    pages = {},
    month = {May},
    year = {2017},
    address = {Jeju, Korea},
    doi = {10.1364/DH.2017.W3A.3},
    jcr = {EI},
    }

  4. Ni Chen, Haichao Wang, Ao Zhou, and Guohai Situ. “High performance light field acquisition.” In Digital Holography & 3–D Imaging, Jeju, Korea, May 2017.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2017_DH,
    title = {High performance light field acquisition},
    author = {Ni Chen and Haichao Wang and Ao Zhou and Guohai Situ},
    booktitle = {Digital Holography \& 3--D Imaging},
    pages = {},
    month = {May},
    year = {2017},
    address = {Jeju, Korea},
    doi = {10.1364/DH.2017.W2A.21},
    jcr = {EI},
    }

  5. Ni Chen, Zhenbo Ren, Antony Chan, Xing Sun, and Edmund Y. Lam. “Depth Enhancement of Optical Scanning Holography with a Spiral Phase Plate.” In Digital Holography & 3–D Imaging, pp. DW2A.3, Shanghai, China, May 2015.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2015_DH,
    title = {Depth Enhancement of Optical Scanning Holography with a Spiral Phase Plate},
    author = {Ni Chen and Zhenbo Ren and Antony Chan and Xing Sun and Edmund Y. Lam},
    booktitle = {Digital Holography \& 3--D Imaging},
    pages = {DW2A.3},
    month = {May},
    year = {2015},
    address = {Shanghai, China},
    doi = {10.1364/DH.2015.DW2A.3},
    jcr = {EI},
    }

  6. Ni Chen, Jae-Hyeung Park, Jiwoon Yeom, Jonghyun Kim, Gang Li, and Byoungho Lee. “Fourier hologram synthesis from two photographic images captured at different focal planes.” In Imaging and Applied Optics 2014, vol. JTu4A, pp. 6, Seattle, Washington, USA, Jul. 2014.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2014_DH,
    title = {{F}ourier hologram synthesis from two photographic images captured at different focal planes},
    author = {Ni Chen and Jae-Hyeung Park and Jiwoon Yeom and Jonghyun Kim and Gang Li and Byoungho Lee},
    booktitle = {Imaging and Applied Optics 2014},
    volume = {JTu4A},
    pages = {6},
    month = {Jul.},
    year = {2014},
    address = {Seattle, Washington, USA},
    doi = {10.1364/AIO.2014.JTu4A.6},
    jcr = {EI},
    }

  7. Ni Chen, Keehoon Hong, Jiwoon Yeom, and Byoungho Lee. “Wavefront reconstruction using multiple illuminations and single-shot intensity image.” In Photonics Conference 2013, vol. TP-VI9, pp. 382-384, Jeju, Korea, Nov. 2013.  [ [bibtex] ]
    @Conference{Chen_2013_PC,
    title = {Wavefront reconstruction using multiple illuminations and single-shot intensity image},
    author = {Ni Chen and Keehoon Hong and Jiwoon Yeom and Byoungho Lee},
    booktitle = {Photonics Conference 2013},
    volume = {TP-VI9},
    pages = {382-384},
    month = {Nov.},
    year = {2013},
    address = {Jeju, Korea},
    doi = {}
    }

  8. Ni Chen, Jiwoon Yeom, and Byoungho Lee. “Optimized Phase Retrieval Algorithm with Multiple Illuminations.” In Fringe 2013–The 7th International Workshop on Advanced Optical Metrology, pp. 337-340, Nurtingen, Germany, Sep. 2013.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2013_FRINGE,
    title = {Optimized Phase Retrieval Algorithm with Multiple Illuminations},
    author = {Ni Chen and Jiwoon Yeom and Byoungho Lee},
    booktitle = {Fringe 2013--The 7th International Workshop on Advanced Optical Metrology},
    pages = {337--340},
    organization= {},
    month = {Sep.},
    year = {2013},
    address = {Nurtingen, Germany},
    doi = {10.1007/978-3-642-36359-7_60},
    jcr = {EI},
    }

  9. Ni Chen, Keehoon Hong, Jiwoon Yeom, Jae–Hyun Jung, and Byoungho Lee. “Experiment verification of hologram generation using intensity images.” In Information Optics and Optical Data Storage II, Photonics Asia, vol. 8559-15, pp. 85590F–85590F, Beijing, China, Nov. 2012.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2012_PA,
    title = {Experiment verification of hologram generation using intensity images},
    author = {Ni Chen and Keehoon Hong and Jiwoon Yeom and Jae--Hyun Jung and Byoungho Lee},
    booktitle = {Information Optics and Optical Data Storage II, Photonics Asia},
    volume = {8559-15},
    pages = {85590F--85590F},
    month = {Nov.},
    year = {2012},
    address = {Beijing, China},
    doi = {10.1117/12.1000098},
    jcr = {EI},
    }

  10. Ni Chen, Jiwoon Yeom, and Byoungho Lee. “Hologram recording using one single color intensity image.” In The 12th International Meeting on Information Display, pp. 660-661, Daegu, Kore, Aug. 2012.  [ [bibtex] ]
    Outstanding poster paper award
    @Conference{Chen_2012_IMID,
    title = {Hologram recording using one single color intensity image},
    author = {Ni Chen and Jiwoon Yeom and Byoungho Lee},
    booktitle = {The 12th International Meeting on Information Display},
    pages = {660--661},
    month = {Aug.},
    year = {2012},
    address = {Daegu, Kore},
    doi = {},
    note = {Outstanding poster paper award},
    }

  11. Ni Chen, Jiwoon Yeom, Gibal Park, Jae-Hyeung Park, and Byoungho Lee. “Digital hologram recording using transport of intensity equation.” In The 4th International Conference on 3D system and Applications, pp. 94-96, Hsinchu, Taiwan, June 2012.  [ [bibtex] ]
    @Conference{Chen_2012_3DSA,
    title = {Digital hologram recording using transport of intensity equation},
    author = {Ni Chen and Jiwoon Yeom and Gibal Park and Jae-Hyeung Park and Byoungho Lee},
    booktitle = {The 4th International Conference on 3D system and Applications},
    pages = {94--96},
    month = {June},
    year = {2012},
    address = {Hsinchu, Taiwan},
    doi = {}
    }

  12. Ni Chen and Byoungho Lee. “Analysis of the resolution of hologram reconstruction related to the lens array shape based on integral imaging.” In the first Korea-Japan Workshop on Digital Holography and Information Photonics, pp. 87-88, Seoul, Korea, Nov. 2011.  [ [bibtex] ]
    @Conference{Chen_2011_DHIP,
    title = {Analysis of the resolution of hologram reconstruction related to the lens array shape based on integral imaging},
    author = {Ni Chen and Byoungho Lee},
    booktitle = {the first Korea-Japan Workshop on Digital Holography and Information Photonics},
    volume = {},
    pages = {87-88},
    month = {Nov.},
    year = {2011},
    address = {Seoul, Korea},
    doi = {}
    }

  13. Ni Chen, Jiwoon Yeom, Jae-Hyeung Park, and Byoungho Lee. “High resolution Fourier hologram generation using hexagonal lens array based on integral imaging.” In The 11th International Meeting on Information Display, pp. P2-05, Seoul, Korea, Oct. 2011.  [ [bibtex] ]
    @Conference{Chen_2011_IMID,
    title = {High resolution {F}ourier hologram generation using hexagonal lens array based on integral imaging},
    author = {Ni Chen and Jiwoon Yeom and Jae-Hyeung Park and Byoungho Lee},
    booktitle = {The 11th International Meeting on Information Display},
    volume = {},
    pages = {P2-05},
    month = {Oct.},
    year = {2011},
    address = {Seoul, Korea},
    doi = {}
    }

  14. Ni Chen, Jiwoon Yeom, Keehoon Hong, Jisoo Hong, Jae–Hyun Jung, Jae-Hyeung Park, and Byoungho Lee. “Phase–only hologram generation from multiple defocused images of three–dimensional object.” In OSA Topical Meeting on Digital Holography and Three-Dimensional, pp. DMB3, Tokyo, Japan, May 2011.  [ [bibtex] | [DOI] ]
    @Conference{Chen_2011_DH,
    title = {Phase--only hologram generation from multiple defocused images of three--dimensional object},
    author = {Ni Chen and Jiwoon Yeom and Keehoon Hong and Jisoo Hong and Jae--Hyun Jung and Jae-Hyeung Park and Byoungho Lee},
    booktitle = {OSA Topical Meeting on Digital Holography and Three-Dimensional},
    pages = {DMB3},
    month = {May},
    year = {2011},
    address = {Tokyo, Japan},
    doi = {10.1364/DH.2011.DMB3}
    }

  15. Ni Chen, Jiwoon Yeom, Jae-Hyeung Park, and Byoungho Lee. “High efficiency computer generated multi–plane phase-only hologram algorithm.” In 18th Conference on Optoelectronics and Optical Communication, vol. F1D-IV3, pp. 314-315, Gyeongju, Korea, May 2011.  [ [bibtex] ]
    @Conference{Chen_2011_COOC,
    title = {High efficiency computer generated multi--plane phase-only hologram algorithm},
    author = {Ni Chen and Jiwoon Yeom and Jae-Hyeung Park and Byoungho Lee},
    booktitle = {18th Conference on Optoelectronics and Optical Communication},
    journal = {COOC},
    volume = {F1D-IV3},
    pages = {314--315},
    month = {May},
    year = {2011},
    address = {Gyeongju, Korea},
    doi = {}
    }

  16. Ni Chen, Jiwoon Yeom, Keehoon Hong, Jisoo Hong, Jae-Hyeung Park, and Byoungho Lee. “Numerical phase–only Fresnel hologram generation of three–dimensional object.” In The Optical Society of Korea Annual Meeting 2011, pp. TP–VII4, Seoul, Korea, Feb. 2011.  [ [bibtex] ]
    @Conference{Chen_2011_OSKAM,
    title = {Numerical phase--only Fresnel hologram generation of three--dimensional object},
    author = {Ni Chen and Jiwoon Yeom and Keehoon Hong and Jisoo Hong and Jae-Hyeung Park and Byoungho Lee},
    booktitle = {The Optical Society of Korea Annual Meeting 2011},
    pages = {TP--VII4},
    month = {Feb.},
    year = {2011},
    address = {Seoul, Korea},
    doi = {}
    }

  17. Ni Chen, Meilan Piao, Jae-Hyeung Park, and Nam Kim. “Color Reconstruction of 3D Objects from Single–plane Fourier Hologram Based on Integral imaging.” In 10th International Meeting on Information Display, pp. 59-4, Ilsan, Korea, Oct. 2010.  [ [bibtex] | EI ]
    @Conference{Chen_2010_IMID,
    title = {Color Reconstruction of 3D Objects from Single--plane {F}ourier Hologram Based on Integral imaging},
    author = {Ni Chen and Meilan Piao and Jae-Hyeung Park and Nam Kim},
    booktitle = {10th International Meeting on Information Display},
    pages = {59-4},
    month = {Oct.},
    year = {2010},
    address = {Ilsan, Korea},
    doi = {},
    jcr = {EI},
    }

  18. Ni Chen, Jae-Hyeung Park, and Nam Kim. “Resolution analysis of Fourier hologram using integral imaging and its enhancement.” In Liang-Chy Chien, editor, Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, vol. 7618, pp. 76180901-76180908, San Francisco, California, USA, Jan. 2010.  [ [bibtex] | [DOI] | EI ]
    @Conference{Chen_2010_SPIE,
    title = {Resolution analysis of {F}ourier hologram using integral imaging and its enhancement},
    author = {Ni Chen and Jae-Hyeung Park and Nam Kim},
    booktitle = {Proc. SPIE 7618, Emerging Liquid Crystal Technologies V},
    Editor = {Liang-Chy Chien},
    volume = {7618},
    number = {},
    pages = {76180901--76180908},
    month = {Jan.},
    year = {2010},
    address = {San Francisco, California, USA},
    doi = {10.1117/12.840175},
    jcr = {EI},
    }

  19. Ni Chen, Jae-Hyeung Park, and Nam Kim. “Resolution analysis of Fourier hologram using integral imaging.” In 20th Anniversary of the Optical Society of Korea, Special Technical Presentation Conference, pp. WP-III6, Gwangju, Korea, Oct. 2009.  [ [bibtex] ]
    @Conference{Chen_2009_AOSK,
    title = {Resolution analysis of {F}ourier hologram using integral imaging},
    author = {Ni Chen and Jae-Hyeung Park and Nam Kim},
    booktitle = {20th Anniversary of the Optical Society of Korea, Special Technical Presentation Conference},
    volume = {},
    pages = {WP-III6},
    month = {Oct.},
    year = {2009},
    address = {Gwangju, Korea},
    doi = {}
    }

  20. Ni Chen, Jae-Hyeung Park, and Nam Kim. “Resolution enhanced Fourier Hologram using integral imaging.” In 14th 3D Display Media Technical Workshop, vol. P-3, pp. 112-117, Seoul, Korea, June 2009.  [ [bibtex] ]
    @Conference{Chen_2009_workshop,
    title = {Resolution enhanced {F}ourier Hologram using integral imaging},
    author = {Ni Chen and Jae-Hyeung Park and Nam Kim},
    booktitle = {14th 3D Display Media Technical Workshop},
    volume = {P-3},
    pages = {112--117},
    month = {June},
    year = {2009},
    address = {Seoul, Korea},
    doi = {}
    }

  21. Ni Chen, Nam Kim, Jae-Hyeung Park, and Seok–Hee Jeon. “Resolution enhanced Fourier hologram using integral imaging with lens array shifting.” In 16th Conference on Optoelectronics and Optical Communication, vol. TP-51, pp. 183-184, Daechon, Korea, May 2009.  [ [bibtex] ]
    @Conference{Chen_2009_COOC,
    title = {Resolution enhanced {F}ourier hologram using integral imaging with lens array shifting},
    author = {Ni Chen and Nam Kim and Jae-Hyeung Park and Seok--Hee Jeon},
    booktitle = {16th Conference on Optoelectronics and Optical Communication},
    volume = {TP-51},
    pages = {183--184},
    month = {May},
    year = {2009},
    address = {Daechon, Korea},
    doi = {}
    }