参考文献

Heasley, Victor L.; Fisher, Audra M.; Herman, Erica E.; Jacobsen, Faith E.; Miller, Evan W.; Ramirez, Ashley M.; Royer, Nicole R.; Whisenand, Josh M.; Zoetewey, David L.; Shellhamer, Dale F. Environmental Science and Technology, 2004 , vol. 38, # 19 p. 5022 - 5029