MORGAN, Luke, SPIGA, Pablo in VERRET, Gabriel, 2015, On the order of Borel subgroups of group amalgams and an application to locally-transitive graphs. [na spletu]. 2015. Vol. 434, no. 7, p. 138–152. [Dostopano 14 april 2025]. DOI 10.1016/j.jalgebra.2015.02.029. Pridobljeno s: http://dx.doi.org/10.1016/j.jalgebra.2015.02.029