@article{TM_1988_185_a6,
     author = {N. I. Karulina},
     title = {A~sufficient condition for optimality for differential inclusions},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {84--86},
     publisher = {mathdoc},
     volume = {185},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1988_185_a6/}
}