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@article{TRSPY_1968_95_a5, author = {V. F. Lazutkin}, title = {Construction of an asymptotic series for eigenfunctions of the ``bouncing ball'' type}, journal = {Informatics and Automation}, pages = {106--118}, publisher = {mathdoc}, volume = {95}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1968_95_a5/} }
V. F. Lazutkin. Construction of an asymptotic series for eigenfunctions of the ``bouncing ball'' type. Informatics and Automation, Asymptotic methods and stochastic models in wave propagation problems, Tome 95 (1968), pp. 106-118. http://geodesic.mathdoc.fr/item/TRSPY_1968_95_a5/