参考文献

Flentge, Charles A.; Chen, Hui-Ju; DeGoey, David A.; Flosi, William J.; Grampovnik, David J.; Huang, Peggy P.; Kempf, Dale J.; Klein, Larry L.; Krueger, Allan C.; Madigan, Darold L.; Randolph, John T.; Sun, Minghua; Yeung, Ming C.; Zhao, Chen Patent: US2011/3827 A1, 2011 ; Location in patent: Page/Page column 104 ; US 20110003827 A1