Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OYAMA Naoto and SHIRAISHI Kazuo and MATSUMURA Kazuhito,lensed fiber with a long working distance utilizing a hemispherically-ended fiber followed by a graded-index fiber tip,Proceedings of the IEICE General Conference,,"The Institute of Electronics, Information and Communication Engineers",1995-03-27,1995,1,183,https://cir.nii.ac.jp/crid/1573105977265159808,