共 18 条
[1]
*ARTH D LITTL INC, 1973, BARR INN IND OPP PUB
[3]
CHAKRABARTI AK, 1974, CALIF MANAG REV, V17
[5]
HIPPEL EV, 1976, RES POLICY, V5, P212
[6]
Langrish J., 1972, WEALTH KNOWLEDGE
[7]
MYERS S, 1969, NSF6916 NAT SCI F
[8]
MYERS S, 1978, TECHNOL REV, V80
[9]
ROBERTSON AB, 1972, SUCCESS FAILURE IND
[10]
ROSENBLOOM RS, 1970, TECHNOLOGY INFORMATI