@article{10_14708_wm_v2i2_2756,
     author = {A. Bielecki},
     title = {Stefan {Kulczycki,} {Geometria} nieeuklidesowa},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 307--309},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1959},
     doi = {10.14708/wm.v2i2.2756},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v2i2.2756/}
}