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@article{DAN_1963_152_4_a19, author = {H. Zieschang}, title = {On the classification of simple systems of paths on a surface of genus~$2$}, journal = {Doklady Akademii Nauk}, pages = {841--844}, publisher = {mathdoc}, volume = {152}, number = {4}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_4_a19/} }
H. Zieschang. On the classification of simple systems of paths on a surface of genus~$2$. Doklady Akademii Nauk, Tome 152 (1963) no. 4, pp. 841-844. http://geodesic.mathdoc.fr/item/DAN_1963_152_4_a19/