@article{AUPCDM_2006_1_1_a0,
     author = {Chronowski, Antoni and Klakla, Maciej},
     title = {Wst\k{e}p},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {5--7},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {2006},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2006_1_1_a0/}
}