@article{AUPCDM_2010_3_1_a7,
     author = {Major, Joanna and Major, Maciej},
     title = {Wok\'o{\l} twierdzenia {Picka}},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {117--140},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2010},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2010_3_1_a7/}
}