@article{CMUC_1987_28_1_a2,
     author = {Witzany, Ji\v{r}{\'\i}},
     title = {On balancing of hypergraphs},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {15--21},
     year = {1987},
     volume = {28},
     number = {1},
     mrnumber = {889764},
     zbl = {0626.05042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1987_28_1_a2/}
}