共 6 条
[1]
HICKS JR, 1939, VALUE CAPITAL, P31
[2]
Mosak J. L., 1942, STUDIES MATH EC ECON, P69
[3]
POLLAK RA, 79 U PENNS DEP EC DI
[4]
SAMUELSON PA, 1946, F ECONOMIC ANALYSIS, P36
[5]
TOBIN J, 1950, REV ECONOMIC STUDIES, V18