Robuta

https://pure.royalholloway.ac.uk/en/publications/a-characterization-of-horizontal-visibility-graphs-and-combinator/ A characterization of horizontal visibility graphs and combinatorics on words - Royal Holloway... graphs and combinatoricsroyal hollowaycharacterizationhorizontalvisibility https://www.journalsindexed.com/2016/11/akce.html AKCE - International Journal of Graphs and Combinatorics AKCE International Journal of Graphs and Combinatorics Publishing Services by Elsevier B.V. on behalf of Kalasalingam University graphs and combinatoricsinternational journalakce