@article{AUPCDM_2015_7_1_a7,
     author = {Wi\'sniewski, Damian},
     title = {Wok\'o{\l} liczb i szereg\'ow harmonicznych},
     journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia},
     pages = {99--109},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2015},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AUPCDM_2015_7_1_a7/}
}