参考文献

Hegde, Vidyadhar Babu; Bis, Scott Jerome; Heo, Emilie Chassat; Hamilton, Christopher Thomas; Johnson, Peter Lee; Karr, Laura Lee; Martin, Timothy Patrick; Neese, Paul Allen; Orr, Nailah; Tisdell, Francis Eugene; Yap, Maurice Chee Hoong; Zhu, Yuanming Patent: US2002/19370 A1, 2002 ;