@article{10_14708_dm_v18i01_6780,
     author = {Jan Konior},
     title = {O poj\k{e}ciu zmiennej w nauczaniu szkolnym matematyki},
     journal = {Didactica Mathematicae},
     pages = { 71--102},
     publisher = {mathdoc},
     volume = {18},
     number = {01},
     year = {1996},
     doi = {10.14708/dm.v18i01.6780},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v18i01.6780/}
}