Dujmović, V., Frati, F., Joret, G. and Wood, D.R. 2013. Nonrepetitive Colourings of Planar Graphs with $O(\log n)$ Colours. The Electronic Journal of Combinatorics. 20, 1 (Mar. 2013), P51. DOI:https://doi.org/10.37236/3153.