共 38 条
[1]
[Anonymous], 1974, CEMENT UNIVERSE STUD
[2]
Asher HB, 1976, CAUSAL MODELING
[7]
Cook T.D., 1979, QUASI EXPT DESIGN AN
[8]
COOPER T, 1981, Circulation, V63, P1199
[9]
Duncan O., 1975, INTRO STRUCTURAL EQU
[10]
EVANS AS, 1976, YALE J BIOL MED, V49, P175