@article{DE_2004_40_6_a1,
     author = {L. A. Kalyakin},
     title = {Asymptotic {Solution} of the {Threshold} {Phenomenon} {Problem} for the {Principal} {Resonance} {Equations}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {731--739},
     publisher = {mathdoc},
     volume = {40},
     number = {6},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_6_a1/}
}