Norvik, M., Metslang, H., Pajusalu, K. and Saar, E. 2022. Livonian polar questions in their areal context. Eesti ja soome-ugri keeleteaduse ajakiri. Journal of Estonian and Finno-Ugric Linguistics. 13, 1 (Sep. 2022), 121–155. DOI:https://doi.org/10.12697/jeful.2022.13.1.05.