@article{TM_1995_211_a3,
     author = {A. V. Bogatyrev and E. S. Pyatnitskii},
     title = {Necessary optimality conditions in terms of generalized {Hamilton{\textendash}Jacobi{\textendash}Bellman} equations with phase constraints},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {62--80},
     year = {1995},
     volume = {211},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1995_211_a3/}
}