TY - JOUR AU - Rui Xu AU - Cun-Quan Zhang TI - Nowhere-zero 3-flows in squares of graphs JO - The electronic journal of combinatorics PY - 2003 VL - 10 UR - http://geodesic.mathdoc.fr/articles/10.37236/1698/ DO - 10.37236/1698 ID - 10_37236_1698 ER -