TY - JOUR AU - Alavi, Yousef AU - Chartrand, Gary TI - The existence of 2-factors in squares of graphs JO - Czechoslovak Mathematical Journal PY - 1975 SP - 79 EP - 83 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1975.101296/ DO - 10.21136/CMJ.1975.101296 LA - en ID - 10_21136_CMJ_1975_101296 ER -