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@article{TRSPY_1994_205_a10, author = {A. A. Oshemkov}, title = {Morse functions on two-dimensional surfaces. {Encoding} of singularities}, journal = {Informatics and Automation}, pages = {131--140}, publisher = {mathdoc}, volume = {205}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1994_205_a10/} }
A. A. Oshemkov. Morse functions on two-dimensional surfaces. Encoding of singularities. Informatics and Automation, New results in the theory of topological classification of integrable systems, Tome 205 (1994), pp. 131-140. http://geodesic.mathdoc.fr/item/TRSPY_1994_205_a10/