Takuro Yonezawa Hiroshi Sakakibara Kengo Koizumi Shingo Miyajima Jin Nakazawa Kazunori Takashio Hideyuki Tokuda uPackage - A Package to Enable Do-It-Yourself Style Ubiquitous Services with Daily Objects. 240-257 2007 conf/ucs/2007 UCS http://dx.doi.org/10.1007/978-3-540-76772-5_19 db/conf/ucs/ucs2007.html#YonezawaSKMNTT07