@article{IVM_1959_6_a23,
     author = {F. I. Frankl'},
     title = {An existence theorem for a~weak solution and first approximation of the direct problem in the theory of the plane-parallel {Laval} nozzle},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {192--201},
     publisher = {mathdoc},
     number = {6},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1959_6_a23/}
}