@article{STUMA_1958__17_1_216925, author = {A. Alexiewicz}, title = {On certain }, journal = {Studia Mathematica}, pages = {65}, publisher = {mathdoc}, volume = {17}, number = {1}, year = {1958}, zbl = {0084.33103}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/STUMA_1958__17_1_216925/} }