@article{AUPCDM_2006_1_1_a8,
     author = {Major, Maciej and Nawolska, Barbara},
     title = {Aktywno\'sci matematyczne student\'ow inspirowane grami {Penneya}},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {137--161},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {2006},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2006_1_1_a8/}
}