%0 Journal Article %A A. G. Kushner %A V. V. Lychagin %A M. Roop %T Contact geometry in optimal control of thermodynamic processes for gases %J Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleniâ %D 2020 %P 99-103 %V 493 %U http://geodesic.mathdoc.fr/item/DANMA_2020_493_a19/ %G ru %F DANMA_2020_493_a19