1. Automotive squeak and rattle prevention;Nolan;SAE paper,1992
2. MB dynamics website (http://www.mbdynamics.com/PDF/SR_brochure.pdf).
3. Lohista website (http://www.lohitsaglobal.com/inside/nhancebsr_review.php).
4. http://www.jdpower.com/corporate/news/releases/pdf/2006082.pdf http://www.autoblog.com/2007/06/06/ford-dominates-j-d-power-and-associates-2007-initial-quality-st/.
5. http://www.jdpower.com/corporate/news/releases/pressrelease.aspx?id=2008063.