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Some progress on the mixed roman domination in graphs

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Mustapha Chellali, Saeed Kosari, Vladimir Samodivkin and Seyed Mahmoud Sheikholeslami
RAIRO-Oper. Res., 55 (2021) S1411-S1423
DOI: 10.1051/ro/2020038

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