1. Nielsen number, impulsive differential equations and problem of Jean Leray;Andres;Topol. Methods Nonlinear Anal.,2020
2. Topological entropy for impulsive differential equations;Andres;Electron. J. Qual. Theory Differ. Equ.,2020
3. Topological Fixed Point Principles for Boundary Value Problems;Andres,2003
4. Ivanov's theorem for admissible pairs applicable to impulsive differential equations and inclusions on tori;Andres;Mathematics,2020
5. Theory of Retracts;Borsuk,1967