S., B. Орчин цагийн монгол хэлний [u ʊ], франц хэлний [y u] авианы туршилт авиазүйн судалгаа: Experimental phonetic analysis of the vowel [ʊ, y, u] in 1st syllable in modern mongolian and french . Mongolian Journal of Foreign Languages and Cultures, [S. l.], v. 19, n. 430, p. 18–24, 2023. DOI: 10.22353/MJFLC2015105. Disponível em: https://journal.num.edu.mn/JOFLAC/article/view/2750. Acesso em: 11 jan. 2025.