1. K. Ireland and M. Rosen, A Classical Introduction to Modern Number Theory [Russian translation], Mir, Moscow (1987).
2. G. V. Voskresenskaya, “The spaces of modular forms that contain multiplicative η-products,” Vestnik SamGU, 97, 5–11 (2012).
3. G. V. Voskresenskaya, “Finite simple groups and multiplicative η-products,” Zap. Nauchn. Semin. POMI, 375, 71–91 (2010).
4. G. V. Voskresenskaya, “Finite groups and families of modular forms associated with them,” Matem. Zam., 87, No. 4, 528–541 (2010).
5. G. V. Voskresenskaya, “Hypercomplex numbers, systems of roots and modular forms,” in: Arithmetic and Geometry of Varieties, Samara (1992), pp. 48–59.