@article{IVM_1993_6_a13,
     author = {O. I. Kirpikova and N. A. Rashchepkina},
     title = {Asymptotic integration of a~singularly perturbed problem in the case of a~multiple spectrum with violation of stability conditions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {74--78},
     publisher = {mathdoc},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1993_6_a13/}
}