共 23 条
[4]
DIXON WJ, 1985, BMDP STATISTICAL SOF
[6]
Halvorson D., 1983, Poultry Digest, V42, P536
[7]
JORDAN FTW, 1981, ISRAEL J MED SCI, V17, P540
[8]
KLEINBAUM DG, 1982, EPIDEMIOLOGIC RES PR, P281
[9]
KLEINBAUM DG, 1978, APPLIED REGRESSION A, P376