00270nam a2200109Ia 450000500170000000800410001708200140005810000140007224500300008626000360011630000080015220260224040935.0260224s9999||||xx |||||||||||||| ||und||  a519.1 SMI  aSmith, D. 0aMathematical demography.   aNew York: Springer-Verlagc1977  a514