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@article{10_4064_cm_28_1_1_5, author = {Klaus Kaiser}, title = {On generalized projective classes}, journal = {Colloquium Mathematicum}, pages = {1--5}, publisher = {mathdoc}, volume = {28}, number = {1}, year = {1973}, doi = {10.4064/cm-28-1-1-5}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-28-1-1-5/} }
Klaus Kaiser. On generalized projective classes. Colloquium Mathematicum, Tome 28 (1973) no. 1, pp. 1-5. doi : 10.4064/cm-28-1-1-5. http://geodesic.mathdoc.fr/articles/10.4064/cm-28-1-1-5/
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