Penkova, Y.A. 2021. About the history of indefinite pronouns: Quasi-relative constructions with ni budi and ni jest’ in 17th–18th century Russian language. Vestnik of Saint Petersburg University. Language and Literature. 18, 1 (May 2021), 114–137. DOI:https://doi.org/10.21638/spbu09.2021.107.