共 63 条
[41]
PETIT M, 1990, AGR GOVT INTERDEPEND, P15
[42]
PHILLIPS MJ, 1986, AM J AGR ECON, V63, P1053
[43]
RASMUSSEN WD, 1987, AM J AGR ECON, V64, P890
[44]
REIF LL, 1987, RURAL SOCIOL, V52, P462
[45]
REIMUND DA, 1986, USDA548 AGR EC REP
[46]
REYNOLDS R, 1989, 33RD ANN C AUSTR AGR
[47]
RYSZKOWSKI L, 1990, ECOLOGICAL RISKS PER, P249
[48]
Sandrey R., 1990, FARMING SUBSIDES NZ
[49]
SCHMITT G, 1990, JUN FRANKF ALG ZEIT, P13
[50]
SCHUH G, 1984, SEP C STRAT MAN RES