Olga Žarinova (2012) Pagizemmo Karjalakse [Let's speak Karelian], St Petersburg, →ISBN, page 11
Tatjana Boiko (2019) “kuorʹoi”, in Suuri Karjal-Venʹalaine Sanakniigu (livvin murreh) [The Big Karelian-Russian dictionary (Livvi dialect)], 2nd edition, →ISBN