Daugavet, Anna, and Peter Arkadiev. “The Perfects in Latvian and Lithuanian: A Comparative Study Based on Questionnaire and Corpus Data”. Baltic Linguistics 12, no. 12 (January 3, 2022): 73-165. Accessed April 23, 2024. https://www.journals.polon.uw.edu.pl/index.php/bl/article/view/922.