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"Proper orientation, proper biorientation and semi-proper orientation ..."
Jiangdong Ai et al. (2023)
- Jiangdong Ai, Stefanie Gerke, Gregory Z. Gutin, Hui Lei, Yongtang Shi:
Proper orientation, proper biorientation and semi-proper orientation numbers of graphs. J. Comb. Optim. 45(1): 40 (2023)

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