@article{10_14708_cm_v23i1_6035, author = {Z. Kominek}, title = {Some remarks on the set classes {\(A_C^N\)} and {\(B_C^N\)}}, journal = {Commentationes Mathematicae}, pages = { 49--52}, publisher = {mathdoc}, volume = {23}, number = {1}, year = {1983}, doi = {10.14708/cm.v23i1.6035}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v23i1.6035/} }