著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Nguyen Hai, Hoang",Numerical investigation of photonic crystal fiber containing elliptical pore and Ge-doped core for optical transmission systems,,"[Graduate School of Engineering and Science, University of the Ryukyus]",2009,琉球大学大学院理工学研究科博士論文,,,,https://cir.nii.ac.jp/crid/1130000795848341888