@article{10_1007_s10492_016_0132_z,
     author = {Ku\v{c}era, V\'aclav},
     title = {Several notes on the circumradius condition},
     journal = {Applications of Mathematics},
     pages = {287--298},
     publisher = {mathdoc},
     volume = {61},
     number = {3},
     year = {2016},
     doi = {10.1007/s10492-016-0132-z},
     mrnumber = {3502112},
     zbl = {06587853},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-016-0132-z/}
}