@article{CMFD_2017_63_4_a5,
     author = {N. M. Ivochkina and N. V. Filimonenkova},
     title = {G\aa rding cones and {Bellman} equations in the theory of {Hessian} operators and equations},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {615--626},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2017_63_4_a5/}
}