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@article{DAN_1964_155_1_a14, author = {H. Zieschang}, title = {On automorphisms of plane groups}, journal = {Doklady Akademii Nauk}, pages = {57--60}, publisher = {mathdoc}, volume = {155}, number = {1}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_1_a14/} }
H. Zieschang. On automorphisms of plane groups. Doklady Akademii Nauk, Tome 155 (1964) no. 1, pp. 57-60. http://geodesic.mathdoc.fr/item/DAN_1964_155_1_a14/