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"Acyclic edge coloring of planar graphs without 4-cycles."
Weifan Wang, Qiaojun Shu, Yiqiao Wang (2013)
- Weifan Wang, Qiaojun Shu, Yiqiao Wang:
Acyclic edge coloring of planar graphs without 4-cycles. J. Comb. Optim. 25(4): 562-586 (2013)

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