[Demographic causes of the decline of birth rate].
Schwarz
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K
D000367:Age Factors; D001723:Birth Rate; D003710:Demography; D005298:Fertility; D005860:Germany, West; D008393:Marriage; D011153:Population; D011157:Population Dynamics; D012725:Sexual Behavior
Age Factors; Birth Rate--changes; Demographic Factors; Fertility; Fertility Measurements; Germany, Federal Republic Of; Marriage Age; Marriage Patterns; Population; Population Dynamics; Reproductive Behavior--changes; Research Report