RT Journal Article SR Electronic(1) A1 Liberman, Anatoly YR 2011 T1 Arjen P. Versloot, Mechanisms of Language Change. Vowel Reduction in 15th Century West Frisian. JF NOWELE. North-Western European Language Evolution VO 60 IS 61 SP 211 OP 219 DO https://doi.org/10.1075/nowele.60-61.12lib PB John Benjamins SN 0108-8416, AB , UL https://www.jbe-platform.com/content/journals/10.1075/nowele.60-61.12lib