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@article{DAN_1994_335_6_a15, author = {V. I. Zhuk}, title = {Bifurcation of the upper branch of a neutral curve and the}, journal = {Doklady Akademii Nauk}, pages = {725--728}, publisher = {mathdoc}, volume = {335}, number = {6}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_6_a15/} }
V. I. Zhuk. Bifurcation of the upper branch of a neutral curve and the. Doklady Akademii Nauk, Tome 335 (1994) no. 6, pp. 725-728. http://geodesic.mathdoc.fr/item/DAN_1994_335_6_a15/