Yuki Sato, Jin Mitsugi, Osamu Nakamura, Jun Murai "Group coding of RF tags to verify the integrity of group of objects"
RFID, 2011 IEEE International Conference on, pages 264--270, 2011/04 PDF
Yuki Sato, Yuki Igarashi, Jin Mitsugi, Osamu Nakamura, Jun Murai "Identification of missing objects with group coding of RF tags"
RFID, 2012 IEEE International Conference on, pages 95--101, 2012/04 PDF