Talk:Voicelessness

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What does means the sentence Contrastively voiceless vowels have been reported several times without ever being verified (L&M 1996:315). Where can be found what seems to be the source written (L&M 1996:315). I don't find it anywhere Where can i find more about these reports of contrastively voiceless vowels ? Thanks Have a nice day — Preceding unsigned comment added by Sagaskarol (talk • contribs) 12:38, 30 March 2018 (UTC)[reply]