1. Yu. S. Osipov, “On stabilization of control systems with delay,” Differ. Uravn. 1 (5), 605–618 (1965).
2. N. N. Krasovskii, Theory of Control of Motion: Linear Systems (Nauka, Moscow, 1968) [in Russian].
3. A. V. Kryazhimskii, V. I. Maksimov, and Yu. S. Osipov, “On positional simulation in dynamic systems,” J. Appl. Math. Mech. 47 (6), 709–714 (1985).
4. A. L. Skubachevskii, “On the problem of damping a control system with aftereffect,” Dokl. Math. 49 (2), 282–286 (1994).
5. A. L. Skubachevskii, Elliptic Functional Differential Equations and Applications (Birkhäuser, Basel, 1997).