de Carvalho, Marcelo H., and C. H. C. Little. “Ear Decompositions in Combed Graphs”. The Electronic Journal of Combinatorics 15, no. 1 (January 28, 2008): R19. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v15i1r19.