Property (FA) and Lattices in su(2, 1). - Matthew Stover (Int. J. Algebra Comput., 2007)

Erratum and Addendum: "Property (FA) and Lattices in SU(2, 1)". - Matthew Stover (Int. J. Algebra Comput., 2013)

Presentations for Quaternionic S-Unit Groups. - Ted Chinburg; Holley Friedlander; Sean Howe; Michiel Kosters; Bhairav Singh; Matthew Stover; Ying Zhang; Paul Ziegler (Exp. Math., 2015)

Explicit Bounds from the Alon-Boppana Theorem. - Joseph Richey; Noah Shutty; Matthew Stover (Exp. Math., 2018)