@article{10_14708_dm_v14i01_6824,
     author = {Stefan Turnau},
     title = {Kronika: {Pi\k{e}\'cdziesi\k{e}ciolecie} {La} {Gen\`ese} du {Nombre} chez {l{\textquoteright}Enfant} {Jeana} {Piageta} i {Aliny} {Szemi\'nskiej}},
     journal = {Didactica Mathematicae},
     pages = { 146--148},
     publisher = {mathdoc},
     volume = {14},
     number = {01},
     year = {1992},
     doi = {10.14708/dm.v14i01.6824},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v14i01.6824/}
}