参考文献

Corbett, Wendy Lea; Grimsby, Joseph Samuel; Haynes, Nancy-Ellen; Kester, Robert Francis; Mahaney, Paige Erin; Racha, Jagdish Kumar; Sarabu, Ramakanth; Wang, Ka Patent: US2003/225283 A1, 2003 ; Location in patent: Page column 15-16 ;