@article{SVMO_2017_19_2_a5,
     author = {M. I. kuptsov and M. T. Teryokhin and V. V. Tenyaev},
     title = {To the problem of existence of integral manifolds systems of differential equations not solved with respect to derivatives},
     journal = {\v{Z}urnal Srednevol\v{z}skogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {76--84},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVMO_2017_19_2_a5/}
}