[1] M. Athans P. L. Falb:
Optimal Control. McGraw-Hill, New York 1966.
MR 0204181
[2] J. Lions: Contrôle optimal de systems gouvernés par des équations aux derivées partielles. (Russian edition). Mir, Moscow 1972.
[3] J. Mikleš: Optimal feedback control of a class of distributed-parameter systems. (in Slovak). Automatizace 23 (1980), 12, 286-290.
[5] J. Mikleš: On the optimal control of a class of distributed-parameter processes. (in Slovak). Strojnícky časopis XXI (1970), 5, 539-550.
[6] J. Mikleš: Optimal control of distributed-parameter processes. (in Slovak). Automatizace 22 (1979), 11, 265-269.