@article{IVM_1997_10_a1,
     author = {S. P. Bautin and A. L. Kazakov},
     title = {A~Cauchy problem with initial data on difference surfaces for a~system with singularity},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {13--23},
     year = {1997},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1997_10_a1/}
}