1. Basova, Galina D. et al (2003). Sopostavitel’naja grammatika russkogo i ukrainskogo jazykov. Naukova Dumka.
2. Biskup, Petr (preprint). Deriving Morphological Aspect in Russian: A Matryoshka Way. Peter Lang. https://www.researchgate.net/publication/364997755_Deriving_Morphological_Aspect_in_Russian_A_Matryoshka_Way.
3. Comrie, Bernard and Greville G. Corbett (1993). The Slavonic Languages. Routledge.
4. Ivčenko, Makar P. (1960). Sučasna ukrajins’ka literaturna mova. Kyjivs’kyj Universytet.
5. Janda, Laura A. (1986). A semantic analysis of the Russian verbal prefixes: Za-, pere-, do-, and ot-. O. Sagner.