1. Arunsawatwong, S., (1996) Stability of retarded delay differential systems, Int. J. Contr., 65:347–364.
2. Arunsawatwong, S., (1998) Stability of Zakian I
MN
recursions for linear delay differential equations, BIT, 38:219–233.
3. Birch, B.J. and Jackson, R., (1959) The behaviour of linear systems with inputs satisfying certain bounding conditions, J. Electroncs & Control, 6:366–375.
4. Bode, H.W., (1960) Feedback — the history of an idea, Proceedings of the Symposium on Active Networks and Feedback Systems, 4.
5. Boyd, S.P. and Barratt, C.H., (1991) Linear Controller Design: Limits of Performance, (Englewood Cliffs, New Jersey, U.S.A.: Prentice Hall).