参考文献

Beck, Patricia Anne; Cesario, Cara; Cox, Matthew; Dong, Han-Qing; Foreman, Kenneth; Mulvihill, Mark Joseph; Nigro, Anthony Innocenzo; Saroglou, Lydia; Steinig, Arno G.; Sun, Yingchuan; Weng, Qinghua; Werner, Douglas; Wilkes, Robin; Williams, Jonathan Patent: US2006/84654 A1, 2006 ; Location in patent: Page/Page column 123-124 ; US 20060084654 A1