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Planar graphs without 4- and 5-cycles are acyclically 4-choosable |
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| Authors: | Min Chen André Raspaud |
| Institution: | 1. Department of Mathematics, Zhejiang Normal University, Jinhua 321004, China;2. LaBRI UMR CNRS 5800, Universite Bordeaux I, 33405 Talence Cedex, France |
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