@article{DE_1988_24_5_a25,
     author = {K. B. Sabitov},
     title = {Uniqueness of the solution of the {Frankl'} problem for equations of mixed type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {904--906},
     publisher = {mathdoc},
     volume = {24},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_5_a25/}
}