@article{IVM_1973_9_a8,
     author = {N. V. Stepanov},
     title = {Existence of a~fundamental-group connection invariantly associated with the equation $y^{(n)}=f(x,y,y',\dots,y^{(n-1)})$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {61--69},
     publisher = {mathdoc},
     number = {9},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_9_a8/}
}