@article{oai:tsukuba.repo.nii.ac.jp:00049174, author = {坂井, 公 and SAKAI, Ko and Sato, Yutaka}, journal = {Journal of information processing}, month = {}, pages = {345--349}, title = {A Method for Constructing a Gray Map for a Group Based on Its Semidirect-product Structure}, volume = {26}, year = {2018}, yomi = {サカイ, コウ} }