@article{10_14708_dm_v38i0_1925,
     author = {William Baker and Olen Dias and Bronislaw Czarnocha and Edme Soho},
     title = {Rozw\'oj {\quotedblbase}struktur dzia{\l}ania{\textquotedblright} w oparciu o matematyczn\k{a} wiedz\k{e} poj\k{e}ciow\k{a}},
     journal = {Didactica Mathematicae},
     publisher = {mathdoc},
     volume = {38},
     year = {2016},
     doi = {10.14708/dm.v38i0.1925},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v38i0.1925/}
}