Baykova, O., Obukhova, O. and Porchesku, G. (2019) “Intonation Contours in Spontaneous Speech of Russian Germans: An Experimental Study of German Language Islands”, Amazonia Investiga, 8(21), pp. 731–746. Available at: https://www.amazoniainvestiga.info/index.php/amazonia/article/view/162 (Accessed: 20 September 2025).