@article{10_14708_dm_v15i01_6801,
     author = {Erich Wttmann},
     title = {Dydaktyka matematyki jako design science},
     journal = {Didactica Mathematicae},
     pages = { 103--116},
     publisher = {mathdoc},
     volume = {15},
     number = {01},
     year = {1993},
     doi = {10.14708/dm.v15i01.6801},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v15i01.6801/}
}