00279nam a2200109Ia 4500008004100000041000800041082001900049100002100068245003100089260004100120300000800161211209s1989    xx            000 0 und d  aeng  a629.89 N89 THA  aTHALER, GEORGE J  aAUTOMATIC CONTROL SYSTEMS   aBOMBAYbJAICO PUBLISHING HOUSEc1989  a457