@article{VNGU_2011_11_1_a7,
     author = {S. I. Mardaev},
     title = {Submodel {Defining} {Formulas}},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {82--86},
     year = {2011},
     volume = {11},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2011_11_1_a7/}
}