@article{IVM_1974_10_a5,
     author = {S. F. Morozov and V. I. Sumin},
     title = {Necessary optimality conditions for controlled stationary transport processes},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {46--56},
     publisher = {mathdoc},
     number = {10},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_10_a5/}
}