半開後圓唇元音
註釋

↑  Dum-Tragut (2009:13頁)
1 2  Traunmüller (1982) harv error: no target: CITEREFTraunmüller1982 (help), cited in Ladefoged & Maddieson (1996:290頁) harv error: no target: CITEREFLadefogedMaddieson1996 (help)
↑  Khan (2010:222頁) harv error: no target: CITEREFKhan2010 (help)
↑  Ternes & Vladimirova-Buhtz (1999:56頁) harv error: no target: CITEREFTernesVladimirova-Buhtz1999 (help)
↑  Carbonell & Llisterri (1992:54頁)
↑  McGill (2014)，第308–309頁. sfnp error: no target: CITEREFMcGill2014 (help)
↑  McGill (2014)，第308頁. sfnp error: no target: CITEREFMcGill2014 (help)
↑  Grønnum (1998:100頁) harv error: no target: CITEREFGrønnum1998 (help)
↑  Basbøll (2005:47頁) harv error: no target: CITEREFBasbøll2005 (help)
1 2  Verhoeven (2005:245頁) harv error: no target: CITEREFVerhoeven2005 (help)
↑  Collins & Mees (2003:132頁) harv error: no target: CITEREFCollinsMees2003 (help)
↑  Collins & Mees (2003:132, 222 and 224頁) harv error: no target: CITEREFCollinsMees2003 (help)
↑  Collins & Mees (2003:222頁) harv error: no target: CITEREFCollinsMees2003 (help)
1 2  Gussenhoven (1992:47頁) harv error: no target: CITEREFGussenhoven1992 (help)
↑
↑  Wells (1982:305頁)
↑  Mannell, Cox & Harrington (2009) harv error: no target: CITEREFMannellCoxHarrington2009 (help)
↑  Bauer et al. (2007:98頁) harv error: no target: CITEREFBauerWarrenBardsleyKennedy2007 (help)
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↑
↑  Scobbie, Gordeeva & Matthews (2006:7頁) harv error: no target: CITEREFScobbieGordeevaMatthews2006 (help)
↑  Stoddart, Upton & Widdowson:74頁) harv error: no target: CITEREFStoddartUptonWiddowson (help)
1 2  Wells (1982:498頁)
1 2  Fougeron & Smith (1993:73頁)
↑  Collins & Mees (2013:225頁) harv error: no target: CITEREFCollinsMees2013 (help)
↑  Shosted & Chikovani (2006:261–262頁) harv error: no target: CITEREFShostedChikovani2006 (help)
↑  Dudenredaktion, Kleiner & Knöbl (2015:34頁) harv error: no target: CITEREFDudenredaktionKleinerKnöbl2015 (help)
1 2  Rogers & d'Arcangeli (2004:119頁)
↑  Jolkesky (2009:676–677 and 682頁) harv error: no target: CITEREFJolkesky2009 (help)
1 2  Pearce (2011:251頁) harv error: no target: CITEREFPearce2011 (help)
↑  Verhoeven (2007:221頁) harv error: no target: CITEREFVerhoeven2007 (help)
↑  Peters (2006:118–119頁) harv error: no target: CITEREFPeters2006 (help)
↑  Gussenhoven & Aarts (1999:158–159頁) harv error: no target: CITEREFGussenhovenAarts1999 (help)
1 2  Stone (2002:600頁) harv error: no target: CITEREFStone2002 (help)
↑  Schambach, Gerog (1858), "Wörterbuch der niederdeutschen Mundart der Fürstenthümer Göttingen und Grubenhagen oder GöttingischGrubenhagen'sches Idiotikon", p. 30.
1 2  Gilles & Trouvain (2013:70頁) harv error: no target: CITEREFGillesTrouvain2013 (help)
1 2  Popperwell (2010:26頁) harv error: no target: CITEREFPopperwell2010 (help)
↑  Jassem (2003:105頁)
↑  Cruz-Ferreira (1995:91頁)
↑   (PDF).   [2021-01-12]. （原始内容 (PDF)存档于2014-12-15）.
↑  Lista das marcas dialetais e ouros fenómenos de variação (fonética e fonológica) identificados nas amostras do Arquivo Dialetal do CLUP （页面存档备份，存于） （葡萄牙語）
1 2  Jones & Ward (1969:56頁) harv error: no target: CITEREFJonesWard1969 (help)
1 2  Kanu & Tucker (2010:249頁) harv error: no target: CITEREFKanuTucker2010 (help)
↑  Danyenko & Vakulenko (1995)，第4頁. sfnp error: no target: CITEREFDanyenkoVakulenko1995 (help)
↑  Šewc-Schuster (1984:20頁) harv error: no target: CITEREFŠewc-Schuster1984 (help)
↑  Tiersma (1999)，第10頁. sfnp error: no target: CITEREFTiersma1999 (help)
1 2  Bamgboṣe (1969:166頁) harv error: no target: CITEREFBamgboṣe1969 (help)