@article{10_14708_dm_v11i01_6858,
     author = {Nicolas Rouche},
     title = {Problemy dotycz\k{a}ce b{\l}\k{e}d\'ow},
     journal = {Didactica Mathematicae},
     pages = { 133--163},
     publisher = {mathdoc},
     volume = {11},
     number = {01},
     year = {1989},
     doi = {10.14708/dm.v11i01.6858},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v11i01.6858/}
}