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@article{10_4064_fm_77_1_5_7, author = {E. Tymchatyn}, title = {Partial order and collapsibility of 2-complexes}, journal = {Fundamenta Mathematicae}, pages = {5--7}, publisher = {mathdoc}, volume = {77}, number = {1}, year = {1972}, doi = {10.4064/fm-77-1-5-7}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-77-1-5-7/} }
E. Tymchatyn. Partial order and collapsibility of 2-complexes. Fundamenta Mathematicae, Tome 77 (1972) no. 1, pp. 5-7. doi : 10.4064/fm-77-1-5-7. http://geodesic.mathdoc.fr/articles/10.4064/fm-77-1-5-7/
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