共 22 条
[1]
ADAS, 2002, AW US PROM INT CROP
[2]
[Anonymous], AGR UK 2006
[4]
Boatman N., 2007, EVALUATION OPERATION
[6]
COWEN R, 1996, ECON J, V106, P521, DOI DOI 10.2307/2235561
[10]
GARTHWAITE DG, 2004, ARABLE CROPS GREAT B