Florian Huc Cláudia Linhares Sales Hervé Rivano The Proportional Colouring Problem: Optimizing Buffers in Wireless Mesh Networks. 141-146 2008 30 Electronic Notes in Discrete Mathematics http://dx.doi.org/10.1016/j.endm.2008.01.025 db/journals/endm/endm30.html#HucSR08