Tsyrlin, A. M. Conditions of optimality of the average problems with non-stationary parameters. (Russian) Zbl 1058.93531 Dokl. Akad. Nauk, Ross. Akad. Nauk 374, No. 2, 177-179 (2000). MSC: 93C95 Application models in control theory Keywords:non-stationary parameters; thermal machine; maximal power × Cite Format Result Cite Review PDF