Minhós Feliz Manuel; Tvrdý Milan; Zima Mirosława: On the solvability of some discontinuous functional impulsive problems. (2020)
Minhós Feliz Manuel; Tvrdý Milan; Zima Mirosława: On the solvability of some discontinuous functional impulsive problems. (2020)
Rachůnková Irena; Tvrdý Milan: Construction of non-constant lower and upper functions for impulsive periodic problems. (2004)