共 32 条
[1]
[Anonymous], 1979, Computers and Intractablity: A Guide to the Theoryof NP-Completeness
[2]
[Anonymous], 1999, ONLINE MEDIUM CUSTOM
[6]
BAKOS Y, 2000, IMPACT ELECT COMMERC
[7]
BARCLAY MJ, 2000, FR0003 U ROCHESTER S
[8]
BENJAMIN R, 1995, SLOAN MANAGE REV, V36, P62