@article{DE_1976_12_11_a16,
     author = {S. P. Bautin},
     title = {The characteristic {Cauchy} problem for a quasilinear analytic system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2052--2063},
     publisher = {mathdoc},
     volume = {12},
     number = {11},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_11_a16/}
}