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@article{10_4064_fm_41_1_12_20, author = {Roman Sikorski}, title = {Closure homomorphisms and interior mappings}, journal = {Fundamenta Mathematicae}, pages = {12--20}, publisher = {mathdoc}, volume = {41}, number = {1}, year = {1955}, doi = {10.4064/fm-41-1-12-20}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-41-1-12-20/} }
Roman Sikorski. Closure homomorphisms and interior mappings. Fundamenta Mathematicae, Tome 41 (1955) no. 1, pp. 12-20. doi : 10.4064/fm-41-1-12-20. http://geodesic.mathdoc.fr/articles/10.4064/fm-41-1-12-20/
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