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@article{PIM_1969_N_S_09_23_a25, author = {M. Marjanovi\'c}, title = {An {Example} {Concerning} {The} {Category} {Numbers}}, journal = {Publications de l'Institut Math\'ematique}, pages = {181 }, publisher = {mathdoc}, volume = {_N_S_09}, number = {23}, year = {1969}, url = {http://geodesic.mathdoc.fr/item/PIM_1969_N_S_09_23_a25/} }
M. Marjanović. An Example Concerning The Category Numbers. Publications de l'Institut Mathématique, _N_S_09 (1969) no. 23, p. 181 . http://geodesic.mathdoc.fr/item/PIM_1969_N_S_09_23_a25/