Yilmaz, Emine. „Interrogative in Chuvash . 921”. Essays in the History of Languages and Linguistics: Dedicated to Marek Stachowski on the Occasion of His 60th Birthday, zredagowane przez Michał Németh i in., Wydawnictwo Księgarnia Akademicka, 2017, https://doi.org/10.12797/9788376388618.51.