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ORCID"On signed digraphs with all cycles negative."
Frank Harary, J. Richard Lundgren, John S. Maybee (1985)
- Frank Harary, J. Richard Lundgren, John S. Maybee:
On signed digraphs with all cycles negative. Discret. Appl. Math. 12(2): 155-164 (1985)
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