David E. Gilsinn
Rodney D. Driver
Alfredo Bellen
I. Győri
D. Baĭnov
Yang Kuang
Dimitri Breda
Aristide Halanay
Yoshiyuki Hino
S. E. A. Mohammed
S. B. Norkin
Thomas Erneux
Joseph Wiener
A. Bellen
Xuerong Mao
Conference on Delay and Functional Differential Equations and Their Applications Park City, Utah 1972.
Vangipuram Lakshmikantham
NATO Advanced Study Institute on Delay Differential Equations and Applications (2002 Marrakech, Morocco)