- Thomas S. Weigel, Jhoel S. Gutierrez, “Normal subgroups in limit groups of prime index”, Journal of Group Theory, 21, no. 1, 2018, 83
- Martin R. Bridson, James Howie, “Normalisers in limit groups”, Math. Ann., 337, no. 2, 2006, 385
- S. C. CHAGAS, P. A. ZALESSKII, “LIMIT GROUPS ARE CONJUGACY SEPARABLE”, Int. J. Algebra Comput., 17, no. 04, 2007, 851