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"Quadruple Roman Domination in Trees."
Zheng Kou et al. (2021)
- Zheng Kou
, Saeed Kosari, Guoliang Hao
, Jafar Amjadi, Nesa Khalili:
Quadruple Roman Domination in Trees. Symmetry 13(8): 1318 (2021)
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