@article{10_14708_dm_v21i01_6741,
     author = {. Redakcja},
     title = {Wybrane z {ZDM}},
     journal = {Didactica Mathematicae},
     pages = { 117--122},
     publisher = {mathdoc},
     volume = {21},
     number = {01},
     year = {1999},
     doi = {10.14708/dm.v21i01.6741},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v21i01.6741/}
}