@article{IVM_1973_12_a4,
     author = {K. I. Kol'tsova},
     title = {The {Goursat} problem for certain systems in {Gevrey} spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {33--42},
     publisher = {mathdoc},
     number = {12},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_12_a4/}
}