Javier Esparza, Michael Luttenberger, Maximilian Schlund. A Brief History of Strahler Numbers. In Adrian Horia Dediu, Carlos Martín-Vide, José Luis Sierra-Rodríguez, Bianca Truthe, editors, Language and Automata Theory and Applications - 8th International Conference, LATA 2014, Madrid, Spain, March 10-14, 2014. Proceedings. Volume 8370 of Lecture Notes in Computer Science, pages 1-13, Springer, 2014. [doi]