Ref ID:	33741
Ref Type:	Journal Article
Authors:	Farquhar, Graham D. Lloyd, Jon Taylor, John A. Flanagan, Lawrenece B. Syvertsen, James P. Hubick, Kerry T. Wong, S. Chin Ehleringer, James R.
Title:	Vegetation effects on the isotope composition of oxygen in atmospheric CO<sub>2</sub>
Date:	1993
Source:	Nature
Date Created:	8/13/2002
Volume:	363
Page Start:	439
Page End:	443