@article{10_14708_wm_v10i2_2147,
     author = {Z. Krygowska},
     title = {{\quotedblbase}Traktat z {Echternach"} o nauczaniu geometrii},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 217--221},
     year = {1968},
     volume = {10},
     number = {2},
     doi = {10.14708/wm.v10i2.2147},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v10i2.2147/}
}