@article{VSGU_2010_4_a14,
     author = {P. V. Trusov and D. A. Charntsev},
     title = {Several properties of mathematical models},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {117--126},
     publisher = {mathdoc},
     number = {4},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2010_4_a14/}
}