@article{UFA_2013_5_2_a1,
     author = {S. Baizaev and D. A. Vositova},
     title = {On solutions of a system of partial differential  equations with two independent variables},
     journal = {Ufa mathematical journal},
     pages = {12--17},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2013_5_2_a1/}
}