00305nam a2200121Ia 4500008004100000020002200041100002400063245003200087260002500119260000900144300000800153650002200161221231s9999    xx            000 0 und d  a978-81-224-2008-1  aSathyanarayana P.S. 0aConcepts of Control Systems  bDynaram Publications  c2001  a409  aTelecommunication