Improvements of the MODIS terrestrial gross and net primary production global data set, Zhao, M., Heinsch F. A., Nemani R. R., and Running S. W. , Remote Sensing of Environment, March 30th, Volume 95, Number 2, p.164-175, (2005)
Usefulness and limits of MODIS GPP for estimating wheat yield, Reeves, M. C., Zhao M., and Running S. W. , International Journal of Remote Sensing, Volume 27, Number 7, p.1403-1421, (2005)