@article{10_14708_dm_v14i01_6815,
     author = {Miros{\l}aw D\k{a}browski},
     title = {O akceptowalno\'sci dowod\'ow przez uczni\'ow na przyk{\l}adzie dowod\'ow pewnych w{\l}asno\'sci liczb naturalnych},
     journal = {Didactica Mathematicae},
     pages = { 5--70},
     year = {1992},
     volume = {14},
     number = {01},
     doi = {10.14708/dm.v14i01.6815},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v14i01.6815/}
}