@article{10_14708_wm_v12i1_2036,
     author = {. Od Redakcji},
     title = {W pi\k{e}\'cdziesi\k{e}ciolecie istnienia {Polskiego} {Towarzystwa} {Matematycznego}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 1--2},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1969},
     doi = {10.14708/wm.v12i1.2036},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v12i1.2036/}
}