参考文献

HOLDER, Swen; Zulch, Armin; Bar, Thomas; Maier, Thomas; Zimmermann, Astrid; Beckers, Thomas; Gekeler, Volker; Joshi, Hemant; Munot, Yogesh; Bhise, Umesh; Chavan, Sunil; Shivatare, Sachin; Patel, Sarvesh; Gore, Vikas Patent: US2009/156604 A1, 2009 ; Location in patent: Page/Page column 23-24 ;