00423nam a2200193Ia 4500008004100000041001200041082000800053082001100061100001600072100001400088100001100102245002800113260001300141260002000154260000900174300001500183650001600198650001500214150909s9999    xx            000 0 und d  aEnglish  a519  bSMI/MA  aKeyfitz N    aSmith D    eAuthor  aMathematical demography  aNew York  bSpringer Verlag  c1977  a514  Pages  aProbability  aStatistics