@article{10_14708_am_v2i1_5117,
     author = {Witold Wi\k{e}s{\l}aw},
     title = {Prace {Leonharda} {Eulera} o kwadraturze ko{\l}a i liczbie pi},
     journal = {Antiquitates Mathematicae},
     pages = { 133--142},
     publisher = {mathdoc},
     volume = {2},
     year = {2008},
     doi = {10.14708/am.v2i1.5117},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/am.v2i1.5117/}
}