1. A. G. Butkovskii, The Theory of Optimal Control of Systems with Distributed Parameters (Nauka, Moscow, 1965) [in Russian].
2. A. G. Butkovskii, Control Methods for Distributed Systems (Nauka, Moscow, 1975) [in Russian].
3. F. P. Vasil’ev, Optimization Methods (Faktorial, Moscow, 2002) [in Russian].
4. E. Ya. Rapoport, Optimal Control of Systems with Distributed Parameters (Vyssh. Shkola, Moscow, 2009) [in Russian].
5. E. Ya. Rapoport, Analysis and Synthesis of Control Systems with Distributed Parameters (Vyssh. Shkola, Moscow, 2005) [in Russian].