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@article{MZM_1988_43_3_a7, author = {S. A. Bogatyi and E. T. Shavgulidze}, title = {Periodic points of a map of a system of intervals}, journal = {Matemati\v{c}eskie zametki}, pages = {365--381}, publisher = {mathdoc}, volume = {43}, number = {3}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1988_43_3_a7/} }
S. A. Bogatyi; E. T. Shavgulidze. Periodic points of a map of a system of intervals. Matematičeskie zametki, Tome 43 (1988) no. 3, pp. 365-381. http://geodesic.mathdoc.fr/item/MZM_1988_43_3_a7/