@article{AUPCDM_2009_2_1_a6,
     author = {Klakla, Maciej and Liszka, Renata and Mityushev, Vladimir},
     title = {Wprowadzenie funkcji trygonometrycznych przez szeregi {Eisensteina}},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {97--103},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2009},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2009_2_1_a6/}
}