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@article{10_4064_cm_24_1_1_2, author = {B. Rotman}, title = {A theorem on almost disjoint sets}, journal = {Colloquium Mathematicum}, pages = {1--2}, publisher = {mathdoc}, volume = {24}, number = {1}, year = {1971}, doi = {10.4064/cm-24-1-1-2}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-24-1-1-2/} }
B. Rotman. A theorem on almost disjoint sets. Colloquium Mathematicum, Tome 24 (1971) no. 1, pp. 1-2. doi : 10.4064/cm-24-1-1-2. http://geodesic.mathdoc.fr/articles/10.4064/cm-24-1-1-2/
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