Voir la notice de l'article provenant de la source University of Lodz Repository
@article{AULFM_1992_05_a7, author = {Balcerzak, Marek}, title = {Orthogonal \ensuremath{\sigma}-ideals and almost disjoint families}, journal = {Acta Universitatis Lodziensis. Folia Mathematica}, publisher = {mathdoc}, volume = {05}, year = {1992}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AULFM_1992_05_a7/} }
Balcerzak, Marek. Orthogonal σ-ideals and almost disjoint families. Acta Universitatis Lodziensis. Folia Mathematica, Tome 05 (1992). http://geodesic.mathdoc.fr/item/AULFM_1992_05_a7/