Schwarzenbach, J. System modelling and control / J. Schwarzenbach, K.F. Gill. - 2nd ed. - London ; Baltimore, Md. : E. Arnold, 1984. - xi, 322 p. : ill. ISBN: 0713135182 (pbk.) LCCN: 90052071 Subjects--Topical Terms: Feedback control systems--Mathematical models.System analysis.