Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YAMAUCHI Junji and MURATA Toshiyuki and NAKANO Hisamatsu,Analysis of Rib Waveguides by a Fourth-Order Accurate Finite-Difference Beam-Propagation Method,IEICE transactions on electronics,09168524,"The Institute of Electronics, Information and Communication Engineers",2002-04-01,85,4,1046,https://cir.nii.ac.jp/crid/1570572702365047424,