共 30 条
[1]
[Anonymous], MATH GEOLOGY
[2]
[Anonymous], 1988, USES ABUSES SOVIETOL
[3]
Arimond G., 2001, Journal of Travel Research, V39, P391, DOI 10.1177/004728750103900405
[5]
BERKOWITZ L, 1993, RES TECHNOL MANAGE, V32, P26
[6]
Camus C., 2003, World Patent Information, V25, P155, DOI 10.1016/S0172-2190(02)00131-X
[8]
Clausen S.E., 1998, APPL CORRES ANAL
[9]
Dore JC, 1996, J AM SOC INFORM SCI, V47, P588, DOI 10.1002/(SICI)1097-4571(199608)47:8<588::AID-ASI3>3.3.CO
[10]
2-D