R. V. Gamkrelidze, On some extremal problems in the theory of differential equations with applications to the theory of optimal control

Title: On some extremal problems in the theory of differential equations with applications to the theory of optimal control
Authors: R. V. Gamkrelidze
Journal title: Soc. Indust. Appl. Math. Ser. A Control
Year: 1965
Volume: 3
Pages: 106–128