A.A. Agrachëv, R.V. Gamkrelidze, The “time substitution” variation in optimal control

Title: The “time substitution” variation in optimal control
Authors: A.A. Agrachëv, R.V. Gamkrelidze
Journal title: Soviet Math. Dokl.
Year: 1990
Issue: 2
Volume: 41
Pages: 227–231