Open Access System for Information Sharing

한국통신학회논문지, vol. 29, no. 3B, page. 305 - 313, 2004-01

한국통신학회논문지, vol. 29, no. 4B, page. 435 - 443, 2004-01

IEICE TRANSACTIONS ON COMMUNICATIONS, vol. E87B, no. 3, page. 507 - 515, 2004-03

LECTURE NOTES IN COMPUTER SCIENCE, vol. 3260, page. 451 - 465, 2004-01

LECTURE NOTES IN COMPUTER SCIENCE, vol. 3090, page. 370 - 379, 2004-01