參考文獻:
Salvati, Mark E. Balog, James Aaron Pickering, Dacia A. Giese, Soren Fura, Aberra Li, Wenying Patel, Ramesh N. Hanson, Ronald L. Mitt, Toomas Roberge, Jacques Y. Corte, James R. Spergel, Steven H. Rampulla, Richard A. Misra, Raj N. Xiao, Hai-Yun Patent: US2004/77605 A1, 2004 US 20040077605 A1