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"Kousuke Nishikawa,Satoshi Tayu,Shuichi UENO","A Note on the Subtree Isomorphism Problem","2013IEICE General Conference","Proceedings of the 2013 IEICE General Conference","Institute of Electronics, Information and Communication Engineers",,,"p. A-1-5",2013,Mar.
"Kousuke Nishikawa,Satoshi Tayu,Shuichi UENO","On Orthogonal Ray Trees",,"Technical Report of the IEICE","Institute of Electronics, Information and Communication Engineers","Vol. 112","No. 418","pp. 35-40",2013,Jan.
"Kousuke Nishikawa,Satoshi Tayu,Shuichi Ueno","Characterizations of Orthogonal Ray Trees","2012 IEICE Society Conference","Proceedings of the 2012 IEICE Society Conference",,,"No. A-1-10",,2012,Sept.
"Kousuke Nishikawa,Satoshi Tayu,Shuichi UENO","A Note on the Maximum Balanced Biclique Problem","2011 IEICE Society Conference","Proceedings of the 2011 IEICE Society Conference",,,"No. A-1-14",,2011,Sept.