00271nam a2200109Ia 4500008004100000041000800041082002300049100002000072245002800092260003300120300000800153211209s1999    xx            000 0 und d  aeng  a629.89 N99 DOR/BIS  aDORF, RICHARD C  aMODERN CONTROL SYSTEMS   aHARLOWbADDISON-WESLEYc1999  a855