@article{VYURM_2019_11_4_a0,
     author = {E. A. Derkunova},
     title = {On refining the asymptotics of a singular perturbed problem solution as a result of separation of the roots of a degenerate equation},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matematika, mehanika, fizika},
     pages = {5--11},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURM_2019_11_4_a0/}
}