@article{TM_1999_224_a13,
     author = {A. V. Kryazhimskii and Yu. S. Osipov},
     title = {On {Two-Dimensional} {Reduction} in a {Differential} {Game} of {Quality}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {218--233},
     year = {1999},
     volume = {224},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1999_224_a13/}
}