Dynamics and Bifurcations, by J. Hale and H. Koçak.
Springer-Verlag, New York, N.Y. (1996).
Differential and Difference Equations Through Computer Experiments,
by H. Koçak.
Springer-Verlag, New York, N.Y. (1989).
ECM/87. Educational computing in mathematics.
Proceedings of the International Congress held at the University of Rome
``La Sapienza'', Rome, June 4--6, 1987.
Edited by T. F. Banchoff, I. Capuzzo-Dolcetta, M. Dechamps-Gondim, M. Emmer,
H. Koçak and D. L. Salinger. North-Holland Publishing Co.,
Amsterdam, 1988. x+284 pp. ISBN: 0-444-70456-6