@article{10_14708_dm_v40i0_6432,
     author = {Micha{\l} Marcin Kr\'owczy\'nski},
     title = {On a definitional understanding of the root concept},
     journal = {Didactica Mathematicae},
     pages = { 35--63},
     publisher = {mathdoc},
     volume = {40},
     year = {2018},
     doi = {10.14708/dm.v40i0.6432},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v40i0.6432/}
}