00400nam a2200133Ia 4500008004100000041000800041082002000049100001500069245003100084260002500115300000800140952010100148999001700249211209s1975    xx            000 0 und d  aeng  a510 N75 KOP/MAR  aKOPCHENOVA  aCOMPUTATIONAL MATHEMATICS   bMIR PUBLISHERSc1975  a396  00104070aRITbRITd2021-12-31l0o510 N75 KOP/MARp19793r2021-12-31 00:00:00w2021-12-31yBK  c19793d19793