Li, Jianxi, Ji-Ming Guo, and Wai Chee Shiu. “The Orderings of Bicyclic Graphs and Connected Graphs by Algebraic Connectivity”. The Electronic Journal of Combinatorics 17, no. 1 (December 3, 2010): R162. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v17i1r162.