@article{10_14708_am_v15i1_7094,
     author = {Lech Maligranda},
     title = {Izydor {Blumenfeld} (1882-1944)}},
     journal = {Antiquitates Mathematicae},
     pages = { 91--115},
     publisher = {mathdoc},
     volume = {15},
     year = {2021},
     doi = {10.14708/am.v15i1.7094},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/am.v15i1.7094/}
}