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https://research.tilburguniversity.edu/en/publications/the-devoicing-of-fricatives-in-standard-dutch-a-real-time-study-b/ The devoicing of fricatives in standard Dutch. A real-time study based on radio recordings -... https://www.isca-archive.org/interspeech_2016/ghosh16_interspeech.html ISCA Archive - L1-L2 Interference: The Case of Final Devoicing of French Voiced Fricatives in Final... https://wals.info/valuesets/4A-seb WALS Online - Datapoint Sebei / Voicing in Plosives and Fricatives wals online datapoint voicing fricatives https://adoneilson.com/eme/OEtoME/fricatives.html OE to ME - fricatives & semivowels oe fricatives https://wals.info/valuesets/4A-yey WALS Online - Datapoint Yeyi / Voicing in Plosives and Fricatives wals online datapoint voicing fricatives https://scholarworks.iu.edu/journals/index.php/iulcwp/article/view/25797 Varied adaptation patterns of English stops and fricatives in Korean loanwords: The influence of... https://wals.info/valuesets/4A-nan WALS Online - Datapoint Nandi / Voicing in Plosives and Fricatives wals online datapoint nandi voicing