|
Paola Escudero, Paul Boersma, Andréia Schurt Rauber & Ricardo A.H. Bion (2009): "A cross-dialect acoustic description of vowels: Brazilian and European Portuguese." Journal of the Acoustical Society of America 126: 1379–1393.
Available on http://www.fon.hum.uva.nl/paul/
© ppgb 20190331