@article{10_14708_dm_v21i01_6737,
     author = {Dariusz Panek and Antoni Parda{\l}a},
     title = {Diagnozowanie wyobra\'zni przestrzennej uczni\'ow i student\'ow},
     journal = {Didactica Mathematicae},
     pages = { 65--83},
     publisher = {mathdoc},
     volume = {21},
     number = {01},
     year = {1999},
     doi = {10.14708/dm.v21i01.6737},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v21i01.6737/}
}