00274nam a2200121Ia 45000030006000000080041000060400015000471000016000622450036000782600009001145460012001230050017001350STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAyres Frank  aTheory and problems of matrices  c1977  aEnglish20220125165933.0