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@article{MZM_1987_42_5_a8, author = {M. D. Mardanov}, title = {Necessary optimality conditions in systems with lags and phase constraints}, journal = {Matemati\v{c}eskie zametki}, pages = {691--702}, publisher = {mathdoc}, volume = {42}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_5_a8/} }
M. D. Mardanov. Necessary optimality conditions in systems with lags and phase constraints. Matematičeskie zametki, Tome 42 (1987) no. 5, pp. 691-702. http://geodesic.mathdoc.fr/item/MZM_1987_42_5_a8/