参考文献:
KALYPSYS, INC. BORCHARDT, Allen DAVIS, Robert BEAUREGARD, Clay BECKER, Daniel GAMACHE, Daniel NOBLE, Stewart, A. HELLBERG, Mark, R. KLIMKO, Peter, G. ZHIHAI, Qui PAYNE, Joseph, E. YANNI, John Patent: WO20/27 A2, 20 Location in patent: Page/Page column 86 WO 20/27 A2