1. Bainov, D. D., Kostadinov, S. I., and Myshkis, A. D. (1988a). Bounded and periodic solutions of differential equations with impulse effect in a Banach space,Differential and Integral Equations,1(2), 223–230.
2. Bainov, D. D., Kostadinov, S. I., and Zabreiko, P. P. (1988b).L p-Equivalence of impulsive equations,International Journal of Theoretical Physics,27(11), 1411–1424.
3. Bainov, D. D., Zabreiko, P. P., and Kostadinov, S. I. (1988c). Stability of the general exponent of nonlinear impulsive differential equations in a Banach space,International Journal of Theoretical Physics,27(3), 373–380.
4. Bainov, D. D., Kostadinov, S. I., Thái, Nguyêñ Hông, and Zabreiko, P. P. (1989a). Existence of integral manifolds for impulsive differential equations in a Banach space,International Journal of Theoretical Physics,28(7), 815–833.
5. Bainov, D. D., Kostadinov, S. I., and Zabreiko, P. P. (1989b). Existence ofL p-solutions of linear equations with impulse effect,Boletim Sociedade Paranaense de Matematica,10, 19–30.