共 12 条
[1]
*AFP, 1996, EL TIM 0817
[2]
CHOI SC, 1997, ANAL INT RES COOPERA
[3]
DAVID PA, 1985, AM ECON REV, V75, P332
[4]
FARRELL J, 1986, AM ECON REV, V76, P940
[10]
SHIN KS, 1997, ELECT TIMES 0806