@article{10_37236_1182,
     author = {Richard A. Brualdi and Stephen Mellendorf},
     title = {Two extremal problems in graph theory},
     journal = {The electronic journal of combinatorics},
     year = {1994},
     volume = {1},
     doi = {10.37236/1182},
     zbl = {0810.05041},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1182/}
}