@article{AUPCDM_2013_5_1_a6,
     author = {Major, Maciej and Nawolska, Barbara},
     title = {Nowe spojrzenie na gry {Penneya}},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {83--94},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {2013},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2013_5_1_a6/}
}