@article{CMFD_2015_58_a4,
     author = {N. M. Ivochkina and N. V. Filimonenkova},
     title = {On new structures in the theory of fully nonlinear equations},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {82--95},
     publisher = {mathdoc},
     volume = {58},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2015_58_a4/}
}