Analysis of information sources in references of the Wikipedia article "Voiced velar approximant" in English language version.
{{cite book}}: CS1 maint: publisher location (link)Mees and Collins (1982) claim alveolar r is most usually a tap or a weak fricative in Standard Dutch, not a trill. They specifically mention Gooise r, as the coda variant for both alveolar and uvular r speakers of Standard Dutch in the Netherlands. They further mention reduction variants, such as a close schwa-like or, after non high vowels, [ɾ]-like glide. Uvular r is claimed to be usually realised as a pre-uvular approximant in onset positions: [ʁ̞˖], while voiceless, non-trilled uvular fricatives are associated with upper socially-marked or affected varieties of Northern Standard Dutch (1982:10).