00273nam a2200109Ia 4500008004100000041000800041082002000049100001200069245003600081260003800117300000800155211209s1962    xx            000 0 und d  aeng  a512.943 N62 AYE  aAYERS F  aMATRICES ( THEORY AND PROBLEM)   aNEW YORKbSCHANN PUBLISHERSc1962  a225