共 37 条
[1]
Aakre D., 2005, CUSTOM FARM WORK RAT
[2]
Anderson C., 2004, S DAKOTA 2004 CUST R
[3]
[Anonymous], J RISK INSURANCE
[4]
Babcock B. A., 2008, Iowa Ag Review, V14, P1
[6]
Barnhart S., 2008, EST COSTS PASTURE HA
[8]
Coble K H, 2007, AM AGR EC ASS ANN M
[10]
MAXIMUM LIKELIHOOD FROM INCOMPLETE DATA VIA EM ALGORITHM
[J].
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-METHODOLOGICAL,
1977, 39 (01)
:1-38