共 49 条
[11]
COX DR, 1972, J R STAT SOC B, V34, P187
[12]
DAVIS K, 1980, NIH812077 PUBL, P309
[14]
Elandt-Johnson R. C., 1980, SURVIVAL MODELS DATA
[16]
FREIDEN A, 1974, EC FAMILY, P352
[17]
Furstenberg F, 1976, UNPLANNED PARENTHOOD
[18]
FURSTENBERG FF, 1981, TEENAGE SEXUALITY PR