Nakamura,S., Nakagawa,H., Tahara,Y., and Ohsuga,A.,”Towards solving an obstacle problem by the cooperation of UAVs and UGVs”,ACM Proc. of 28th ACM Symposium On Applied Computing (SAC2013), pp77-82 (2013.3).

Ishino,K., Orihara,R., Nakagawa,H., Tahara,Y., and Ohsuga,A.,”Support for Video Hosting Service Users using Folksonomy and Social Annotation”,IEEE/WIC/ACM Proc. of the 2012 IEEE/WIC/ACM International Conference on Web Intelligence (WI-IAT2012), pp472-479 (2012.12).