参考文献

Baindur, Nand; Gaul, Michael David; Kreutter, Kevin Douglas; Baumann, Christian Andrew; Kim, Alexander J.; Xu, Guozhang; Tuman, Robert W.; Johnson, Dana L. Patent: US2006/281772 A1, 2006 ; Location in patent: Page/Page column 72 ; US 20060281772 A1