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@article{10_4064_cm_33_1_91_102, author = {R. B. Sher}, title = {Products and sums of absolute proper retracts}, journal = {Colloquium Mathematicum}, pages = {91--102}, publisher = {mathdoc}, volume = {33}, number = {1}, year = {1975}, doi = {10.4064/cm-33-1-91-102}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-33-1-91-102/} }
R. B. Sher. Products and sums of absolute proper retracts. Colloquium Mathematicum, Tome 33 (1975) no. 1, pp. 91-102. doi : 10.4064/cm-33-1-91-102. http://geodesic.mathdoc.fr/articles/10.4064/cm-33-1-91-102/
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