共 23 条
[1]
ANDERSEN D, 1975, SAMLIVSFORMER DANMAR
[2]
BERNHARDT EM, 1971, TRENDS VARIATIONS SW
[3]
BERTELSEN O, 1980, UNGE FAMILIE 1970ERN
[4]
BRAUN HI, 1979, 24 U COP LAB ACT MAT
[5]
BRUNBORG H, 1979, 116 CENTR BUR STAT N
[7]
COOMBS LC, 1970, POP STUD-J DEMOG, V24, P389, DOI 10.1080/00324728.1970.10406136
[8]
De Boor C., 1968, LEAST SQUARES CUBIC
[9]
FARID SM, 1974, POP STUD-J DEMOG, V28, P69, DOI 10.1080/00324728.1974.10404579
[10]
FINNAS F, 1979, SCANDINAVIAN POPULAT, V5, P196