@article{RMF_2021_96_3_a1,
     author = {Filip\v{c}ukov\'a, Alena},
     title = {Extrem\'aln{\'\i} \'ulohy},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {16--31},
     year = {2021},
     volume = {96},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2021_96_3_a1/}
}