共 91 条
[1]
ANDREE SA, 1888, TEKNISK TIDSSKRIFT
[2]
ARNOW KS, 1980, PROPOSED CONCEPTUAL
[3]
Baker Ronald J, 1976, NEW IMPROVED INVENTO
[4]
Basberg B., 1982, RES POLICY, V11
[5]
BASBERG BL, 1983, RES POLICY, V12
[6]
BASBERG BL, 1984, WORLD PATENT INFORMA, V6
[7]
BEGGS JJ, 1984, RD PAT PROD
[8]
BOSWORTH D, 1973, B EC RES, V25
[9]
BOSWORTH D, 1984, RES POLICY, V13
[10]
BOSWORTH DL, 1980, RES POLICY, V9