1. Sur un principle topologique de l’examen de l’allure asymptotique des intégrales des équations différentielles ordinaires;Ważewski;Ann. Soc. Polon. Math.,1947
2. Ordinary Differential Equations;Hartman,2002
3. Ważewski Method and Conley Index;Srzednicki,2004
4. A local version of generalized retract theorem of Ważewski with applications in the theory of partial differential equations of first order;Pelczar;Ann. Polon. Math.,1979
5. The Ważewski method applied to some second order partial parabolic equations;Pelczar;Univ. Iagel. Acta Math.,1991