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@article{MZM_1982_32_2_a5, author = {V. I. Plotnikov and M. I. Sumin}, title = {Necessary conditions in a nonsmooth problem of optimal control}, journal = {Matemati\v{c}eskie zametki}, pages = {187--197}, publisher = {mathdoc}, volume = {32}, number = {2}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1982_32_2_a5/} }
V. I. Plotnikov; M. I. Sumin. Necessary conditions in a nonsmooth problem of optimal control. Matematičeskie zametki, Tome 32 (1982) no. 2, pp. 187-197. http://geodesic.mathdoc.fr/item/MZM_1982_32_2_a5/