@article{DAN_1957_116_3_a5,
     author = {A. I. Utkin},
     title = {An investigation of supersonic flows by means of the {Volterra} integral},
     journal = {Doklady Akademii Nauk},
     pages = {369--372},
     publisher = {mathdoc},
     volume = {116},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_3_a5/}
}