Felsner, S., Joret, G., Micek, P., Trotter, W.T. and Wiechert, V. 2018. Burling Graphs, Chromatic Number, and Orthogonal Tree-Decompositions. The Electronic Journal of Combinatorics. 25, 1 (Feb. 2018), P1.35. DOI:https://doi.org/10.37236/7052.