@article{NM_2009_LIV_1_a8,
     author = {Zoran Kadelburg},
     title = {Materials for young mathematicians},
     journal = {Nastava matematike},
     pages = {37 },
     publisher = {mathdoc},
     volume = {LIV},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NM_2009_LIV_1_a8/}
}