@article{10_14708_cm_v23i1_6044, author = {L. Rempulska}, title = {On the equivalence of logarithmic methods of summabi lity of orthonormal series}, journal = {Commentationes Mathematicae}, pages = { 109--115}, year = {1983}, volume = {23}, number = {1}, doi = {10.14708/cm.v23i1.6044}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v23i1.6044/} }