共 23 条
[1]
CARTER CF, 1958, INDUSTRY TECHNICAL P
[2]
COOPER A, 1964, HARVARD BUSINESS MAY, V3
[3]
ENOS JL, 1962, RATE DIRECTION INVEN
[4]
FELLNER W, 1951, Q J ECON, P55
[5]
GALBRAITH JK, 1968, AMERIKANSK KAPITALIS
[6]
HAMBERG D, 1964, CANADIAN J ECONO FEB
[7]
JANSSON O, 1970, TEKNISKA INNOVATIONE
[8]
Jewkes J., 1958, SOURCES INVENTION
[9]
JOHANNISSON B, 1970, FORETAGSSTORLEK FORS
[10]
Kaplan A., 1955, J AM STAT ASSOC, V50, P1397