Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yamashita Ikuo and Murakami Yasuhiro and Suzuki Takuya and Katou Tomoyuki and Omura Hideyuki,A study of long-haul bidirectional passive optical newwork employing a novel bidirectional EDFA,Proceedings of the Society Conference of IEICE,,"The Institute of Electronics, Information and Communication Engineers",1998-09-07,1998,2,457,https://cir.nii.ac.jp/crid/1570572702452534912,