3 citations to https://www.mathnet.ru/eng/mmj329

1. Maclachlan C., “Bounds for discrete hyperbolic arithmetic reflection groups in dimension 2”, Bull. Lond. Math. Soc., 43:1 (2011), 111–123            
2. V. V. Nikulin, “The transition constant for arithmetic hyperbolic reflection groups”, Izv. Math., 75:5 (2011), 971–1005                  
3. Nikulin V.V., “On ground fields of arithmetic hyperbolic reflection groups. III”, J. Lond. Math. Soc. (2), 79:3 (2009), 738–756