Marthe Bonamy Matthew Johnson 0002 Ioannis Lignos Viresh Patel Daniël Paulusma On the diameter of reconfiguration graphs for vertex colourings. 161-166 2011 38 Electronic Notes in Discrete Mathematics http://dx.doi.org/10.1016/j.endm.2011.09.028 db/journals/endm/endm38.html#BonamyJLPP11