Natural frequency, duration, and intensity of vowels in reading. Black, J. W Journal of Speech and Hearing Disorders, 14(3):216-221, September.
Natural frequency, duration, and intensity of vowels in reading [link]Paper  doi  bibtex   
@article{black_natural_1949,
	Author = {Black, John W},
	Date = {1949},
	Date-Modified = {2017-04-19 08:04:06 +0000},
	Doi = {10.1044/jshd.1403.216},
	Issn = {0022-4677},
	Journal = {Journal of Speech and Hearing Disorders},
	Keywords = {acoustic phonetics, duration, f0, intensity, phonation, phonetics, prosody, read speech, segmental, speaking styles, temporal factors, vowels},
	Month = sep,
	Number = {3},
	Pages = {216-221},
	Title = {Natural frequency, duration, and intensity of vowels in reading},
	Url = {http://jshd.pubs.asha.org/article.aspx?doi=10.1044/jshd.1403.216},
	Volume = {14},
	Bdsk-Url-1 = {http://jshd.pubs.asha.org/article.aspx?doi=10.1044/jshd.1403.216},
	Bdsk-Url-2 = {http://dx.doi.org/10.1044/jshd.1403.216}}
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