00237nam a2200109Ia 4500008004100000041000800041082001800049100001800067245002500085260000900110300000800119211209s1977    xx            000 0 und d  aeng  a669.8 N77 KAZ  aKAZANTSEV E L  aINDUSTRIAL FURNACES   c1977  a375