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@article{AA_1996_8_2_a6, author = {W. Lay and A. Ya. Kazakov and S. Yu. Slavyanov}, title = {Eigenvalue problems for equations of the {Heun} class}, journal = {Algebra i analiz}, pages = {129--141}, publisher = {mathdoc}, volume = {8}, number = {2}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_1996_8_2_a6/} }
W. Lay; A. Ya. Kazakov; S. Yu. Slavyanov. Eigenvalue problems for equations of the Heun class. Algebra i analiz, Tome 8 (1996) no. 2, pp. 129-141. http://geodesic.mathdoc.fr/item/AA_1996_8_2_a6/