@article{10_14708_wm_v27i02_4199,
     author = {R. Sikorski},
     title = {Fragmenty toast\'ow {Prezesa}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 241--245},
     publisher = {mathdoc},
     volume = {27},
     number = {02},
     year = {1987},
     doi = {10.14708/wm.v27i02.4199},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v27i02.4199/}
}