@article{10_14708_am_v6i0_553, author = {Danuta Ciesielska}, title = {W{\l}adys{\l}aw {Kretkowski's} doctorate case}, journal = {Antiquitates Mathematicae}, pages = { 7--37}, publisher = {mathdoc}, volume = {6}, year = {2012}, doi = {10.14708/am.v6i0.553}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/am.v6i0.553/} }