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@article{DAN_1960_130_1_a15, author = {Yu. L. Sagalovich}, title = {Number of symmetry types among $(1,k)$ terminal contacts}, journal = {Doklady Akademii Nauk}, pages = {72--73}, publisher = {mathdoc}, volume = {130}, number = {1}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a15/} }
Yu. L. Sagalovich. Number of symmetry types among $(1,k)$ terminal contacts. Doklady Akademii Nauk, Tome 130 (1960) no. 1, pp. 72-73. http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a15/