@article{DAN_1957_115_3_a6,
     author = {V. P. Mikhailov},
     title = {The analytical solution of the {Goursat} problem for a system of differential equations},
     journal = {Doklady Akademii Nauk},
     pages = {450--453},
     publisher = {mathdoc},
     volume = {115},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_3_a6/}
}