@article{10_14708_wm_v18i01_3176,
     author = {R. Duda},
     title = {O hipotezie {Poincar\'cgo}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 19--39},
     publisher = {mathdoc},
     volume = {18},
     number = {01},
     year = {1974},
     doi = {10.14708/wm.v18i01.3176},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v18i01.3176/}
}