Eickmeyer, K. ., Huggins, P. ., Pachter, L. ., & Yoshida, R. . (2008). On the optimality of the neighbor-joining algorithm. Algorithms for Molecular Biology : AMB, 3, 5. https://doi.org/10.1186/1748-7188-3-5 (Original work published 2008)

Levy, D. ., Yoshida, R. ., & Pachter, L. . (2006). Beyond pairwise distances: neighbor-joining with phylogenetic diversity estimates. Molecular Biology and Evolution, 23(3), 491-8. https://doi.org/10.1093/molbev/msj059