@article{MM_1995_7_5_a68,
     author = {I. N. Fedorov},
     title = {The problem $\Delta_1^\infty$ for the equation $S_0$},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {97},
     publisher = {mathdoc},
     volume = {7},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1995_7_5_a68/}
}