@article{BMMS_2001_24_2_a3,
     author = {Chjan C. Lim and Gregory K. Van Patten},
     title = {New
                        {Proofs} of the {Uniqueness} of {Extremal} {Noneven} {Digraphs}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2001},
     volume = {24},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2001_24_2_a3/}
}