1. Bruno, A.D. and Batkhin, A.B., Introduction to nonlinear analysis of algebraic equations, Preprint of the Keldysh Inst. of Applied Mathematics, Russ. Acad. Sci., Moscow, 2020, no. 87 (in Russian).
2. Bruno, A.D., Local Methods in Nonlinear Differential Equations, Berlin: Springer, 1989.
3. Kollár, J. Lectures on Resolution of Singularities, Princeton: Princeton Univ. Press, 2007.
4. Kollár, J., Resolution of Singularities – Seattle Lecture, 2007. math/0508332v3.
5. Milnor, J.W., Morse theory. Based on lecture notes by M. Spivak and R. Wells, Princeton, N.J.: Princeton Univ. Press, 1963.