00245nam a2200109Ia 4500008004100000041000800041082002300049100001000072245003600082260000900118300000800127211209s1975    xx            000 0 und d  aeng  a620.11 N75 GUP/GUP  aGUPTA  aMATERIAL SCIENCE AND PROCESSES   c1975  a152