@article{DBLP:journals/siamdm/Bang-JensenHM88,
author = {J{\o}rgen Bang-Jensen and
Pavol Hell and
Gary MacGillivray},
title = {The Complexity of Colouring by Semicomplete Digraphs},
journal = {SIAM J. Discrete Math.},
volume = {1},
number = {3},
year = {1988},
pages = {281-298},
ee = {http://dx.doi.org/10.1137/0401029},
bibsource = {DBLP, http://dblp.uni-trier.de}
}