A. G. Vitushkin, Encyclopaedia of Mathematical Sciences, 7, Introduction to Complex Analysis, 1997, 159
A. V. Isaev, “The images of levi-nondegenerate manifolds under holomorphic mappings”, Complex Variables, Theory and Application: An International Journal, 27:3 (1995), 217
А. В. Лобода, “О непрерывности приведения гиперповерхностей в пространстве $\mathbb{C}^2$ к нормальной форме”, Функц. анализ и его прил., 27:4 (1993), 81–84 ; A. V. Loboda, “The Continuity of Reduction of Hypersurfaces in $\mathbb{C}^2$ to a Normal Form”, Funct. Anal. Appl., 27:4 (1993), 288–290