@article{RMF_2008_83_3_a0,
     author = {Gergelitsov\'a, \v{S}\'arka},
     title = {\'Uloha o \v{c}tverci},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {1--11},
     year = {2008},
     volume = {83},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2008_83_3_a0/}
}