@article{RMF_2023_98_3_a1,
     author = {Dlab, Vlastimil},
     title = {Rovnob\v{e}\v{z}n{\'\i}k ve \v{c}tverci},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {6--14},
     year = {2023},
     volume = {98},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2023_98_3_a1/}
}