@article{10_14708_dm_v33i0_35,
     author = {El\.zbieta Mro\.zek},
     title = {Typologia zada\'n na por\'ownywanie r\'o\.znicowe i ilorazowe},
     journal = {Didactica Mathematicae},
     publisher = {mathdoc},
     volume = {33},
     year = {2010},
     doi = {10.14708/dm.v33i0.35},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v33i0.35/}
}