@article{KUIPM_1992_a9,
     author = {V. S. Mokeichev},
     title = {The small parameter method in the case of resonance and in the absence of a~solution to the degenerate equation},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {83--97},
     publisher = {mathdoc},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1992_a9/}
}