共 5 条
[1]
BELSON WA, 1956, APPL STAT, V5, P195
[2]
COCHRAN WG, 1970, ONR29 HARV U TECHN R
[3]
COCHRAN WG, 1969, APPL STAT, V18, P270
[5]
RUBIN DB, 1970, CP4 HARV U DEP STAT