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@article{10_4064_fm_90_1_99_103, author = {David Sprows}, title = {Homeotopy groups of compact 2-manifolds}, journal = {Fundamenta Mathematicae}, pages = {99--103}, publisher = {mathdoc}, volume = {90}, number = {1}, year = {1975}, doi = {10.4064/fm-90-1-99-103}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-90-1-99-103/} }
David Sprows. Homeotopy groups of compact 2-manifolds. Fundamenta Mathematicae, Tome 90 (1975) no. 1, pp. 99-103. doi : 10.4064/fm-90-1-99-103. http://geodesic.mathdoc.fr/articles/10.4064/fm-90-1-99-103/
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