PRAAKLI, K.; NIIN, Ülle. Birute Klaas-Langi bibliograafia 1981–2016. Eesti ja soome-ugri keeleteaduse ajakiri. Journal of Estonian and Finno-Ugric Linguistics, Tartu, Estonia, v. 8, n. 1, p. 377–386, 2017. DOI: 10.12697/jeful.2017.8.1.20. Disponível em: https://ojs.utlib.ee/index.php/jeful/article/view/jeful.2017.8.1.20. Acesso em: 21 dec. 2024.