共 8 条
[3]
KEYFITZ N, 1979, POP STUD-J DEMOG, V33, P333, DOI 10.2307/2173538
[4]
Keyfitz N., 1985, APPL MATH DEMOGRAPHY
[5]
MANTON KG, 1992, DEMOGRAPHIC APPL EVE, P9
[7]
VAUPEL JW, 1979, DEMOGRAPHY, V16, P3