00300nam a2200121Ia 45000030006000000080041000060400015000471000015000622450063000772600009001405460012001490050017001610STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMichael, P  aEcological methods for field and laboratory investigations  c1984  aEnglish20220125170349.0