@article{DMGT_2013_33_1_a0,
     author = {Broere, Izak and Mih\'ok, Peter},
     title = {Hereditarnia},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {7},
     year = {2013},
     volume = {33},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2013_33_1_a0/}
}