Houpis, Constantine H. Digital control systems. - 2nd ed. - N.Y.; London: McGraw-Hill , Inc., 1992. - xxiii,752p.; 24cm "N" ISBN: "0-07-112637-6" Subjects--Topical Terms: 1.Digital control systems. Subjects--Index Terms: "Y" LC Class. No.: TJ223 .M53 / .H68