00293nam a2200121Ia 45000030006000000080041000060400015000471000016000622450055000782600009001335460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAyres Frank  aSchaums Outline of theory and problems of matrices  c1979  aEnglish20220125170124.0