Title Restrained {2}-domination in graphs Type of Research Article Keywords Restrained {2}-domination in graphs Abstract Restrained {2}-domination in graphs Researchers Kazhal Haghparast (First Researcher)، jafar amjadi (Second Researcher)، Mustapha Chellali (Third Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Fourth Researcher)