TY - RPRT TI - The contribution of C3 and C4 grasses to interannual variability in time-integrated NDVI over the U.S. Great Plains AU - C. Ricotta AU - Bradley C. Reed AU - Larry L. Tieszen PY - 2011 DO - 10.1142/9789812777249_0043 UR - https://pubs.usgs.gov/publication/70231697 ID - 70231697 ER -