00293nam a2200133Ia 45000030006000000080041000060400015000471000021000622450027000832500011001102600009001215460012001300050017001420STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDowdeswell, W.H.  aMechanism of evolution  aFourth  c1975  aEnglish20220125170505.0