@article{TM_2015_291_a5,
     author = {R. V. Gamkrelidze},
     title = {Dual formulation of the {Pontryagin} maximum principle in optimal control},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {69--75},
     publisher = {mathdoc},
     volume = {291},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2015_291_a5/}
}