2000, Elaine A. Clark, There's Money Where Your Mouth Is: An Insider's Guide to a Career in Voice-Overs, Second Edition, Back Stage Books, ISBN 978-0-8230-7702-1, page 24:The following exercises help combat sibilance, plosives, lazy tongue, and mouth problems.
2006, Barbara Alysen, Electronic Reporter: Broadcast Journalism in Australia, Second Edition, University of New south Wales Press, ISBN 978-0-86840-495-0, page 118:A string of words beginning with ‘s’ will cause sibilance.
2009, Jean Ann Wright and M. J. Lallo, Voice-Over for Animation, Elsevier, ISBN 978-0-240-81015-7, page 28:Work to control the sibilance of your s sounds.
2012, Michael Zager, Music Production: For Producers, Composers, Arrangers, and Students, Second Edition, Scarecrow Press, ISBN 978-0-8108-8202-7, page 277:Most often sending the vocal through a de-esser will either eliminate the sibilance or greatly reduce its sound.
