TY - JOUR AU - Ararat Harutyunyan AU - Bojan Mohar TI - Strengthened Brooks' theorem for digraphs of girth at least three JO - The electronic journal of combinatorics PY - 2011 VL - 18 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.37236/682/ DO - 10.37236/682 ID - 10_37236_682 ER -