@article{ARM_1984_20_2_a4,
     author = {Nov\'ak, V{\'\i}t\v{e}zslav},
     title = {On some minimal problem},
     journal = {Archivum mathematicum},
     pages = {95--99},
     year = {1984},
     volume = {20},
     number = {2},
     mrnumber = {784860},
     zbl = {0554.06003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1984_20_2_a4/}
}