TY - JOUR AU - Chen, Xue-Gang TI - A note on the double Roman domination number of graphs JO - Czechoslovak Mathematical Journal PY - 2020 SP - 205 EP - 212 VL - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0212-18/ DO - 10.21136/CMJ.2019.0212-18 LA - en ID - 10_21136_CMJ_2019_0212_18 ER -