参考文献

Deng, Jianghe; Kerns, Jeffrey K.; Jin, Qi; Lin, Guoliang; Lin, Xichen; Lindenmuth, Michael; Neipp, Christopher; Nie, Hong; Thomas, Sonia M.; Widdowson, Katherine L. Patent: US2009/143372 A1, 2009 ; US 20090143372 A1