academic article

• Comparing global models of terrestrial net primary productivity (NPP): comparison of NPP to climate and the Normalized Difference Vegetation Index (NDVI).  Global Change Biology.  5:25-34. 1999
• Comparing global models of terrestrial net primary productivity (NPP): global pattern and differentiation by major biomes.  Global Change Biology.  5:16-24. 1999
• Comparing global models of terrestrial net primary productivity (NPP): importance of vegetation structure on seasonal NPP estimates.  Global Change Biology.  5:35-45. 1999
• Comparing global models of terrestrial net primary productivity (NPP): overview and key results.  Global Change Biology.  5:1-15. 1999