00245nam a2200109Ia 4500008004100000041000800041082002500049100001300074245003100087260000900118300000800127211209s1973    xx            000 0 und d  aeng  a621.3824 N73 ROB/BRO  aROBERT G  aLINES, WAVES AND ANTENNAS   c1973  a471