The Power of Monitoring Stations and a CO2 Fertilization Effect: Evidence from Causal Relationships between NDVI and Carbon Dioxide.Published in:Earth Interactions, 2008, v. 12, n. 9, p. 1, doi. 10.1175/2007EI240.1By:Kaufmann, R. K.;Paletta, L. F.;Tian, H. Q.;Myneni, R. B.;D'Arrigo, R. D.Publication type:Article