@article{10_14708_cm_v6i1_5475,
     author = {F. Bara\'nski},
     title = {O pewnych warunkach wystarczaj\k{a}cych rozwijalno\'sci j\k{a}dra na szereg dwuliniowy},
     journal = {Commentationes Mathematicae},
     pages = { 91--107},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1961},
     doi = {10.14708/cm.v6i1.5475},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v6i1.5475/}
}