00247nam a2200109Ia 4500008004100000041000800041082002600049100001700075245002800092260000900120300000800129211209s1977    xx            000 0 und d  aeng  a621.381 3 N77 SUB/BRI  aSUBRAMANIYAM  aWAVES AND OSCILLATIONS   c1977  a352