%0 Journal Article %A . Abdollahzadeh Ahangar, حسین, . Khaibari, مهلا, Jafari Rad, N. %T A Characterization of Trees with Large Roman Domination Number %J Journal of New Researches in Mathematics %V 2 %N 2 %P 11-19 %D 2016 %R %U https://sanad.iau.ir/fa/Article/798717