DescriptionFoehr North Frisian monophthong chart with long vowels.svg
English: Long monophthongs of the Föhr dialect depicted on a vowel chart.
Date
Source
Own work, based on the average formant values in Bohn, Ocke-Schwen (2004). "How to organize a fairly large vowel inventory: the vowels of Fering (North Frisian)". Journal of the International Phonetic Association34 (2): 164.
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