TY - JOUR AU - Edita Máčajová AU - André Raspaud AU - Martin Škoviera TI - The chromatic number of a signed graph JO - The electronic journal of combinatorics PY - 2016 VL - 23 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.37236/4938/ DO - 10.37236/4938 ID - 10_37236_4938 ER -