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"The signed Roman domatic number of a digraph."
Seyed Mahmoud Sheikholeslami, Lutz Volkmann (2015)
- Seyed Mahmoud Sheikholeslami
, Lutz Volkmann:
The signed Roman domatic number of a digraph. Electron. J. Graph Theory Appl. 3(1): 85-93 (2015)

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