@article{IVM_1991_10_a1,
     author = {Yu. B. Ermolaev},
     title = {V. {V.~Morozov's} regularity theorem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {5--10},
     year = {1991},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1991_10_a1/}
}