H. Timothy Bunnell, Jason Lilley. Schwa variants in american English. In INTERSPEECH 2008, 9th Annual Conference of the International Speech Communication Association, Brisbane, Australia, September 22-26, 2008. pages 1959-1962, ISCA, 2008. [doi]
@inproceedings{BunnellL08,
title = {Schwa variants in american English},
author = {H. Timothy Bunnell and Jason Lilley},
year = {2008},
url = {http://www.isca-speech.org/archive/interspeech_2008/i08_1959.html},
researchr = {https://researchr.org/publication/BunnellL08},
cites = {0},
citedby = {0},
pages = {1959-1962},
booktitle = {INTERSPEECH 2008, 9th Annual Conference of the International Speech Communication Association, Brisbane, Australia, September 22-26, 2008},
publisher = {ISCA},
}