Growth of a poplar short rotation coppice under elevated atmospheric CO2 concentrations (EUROFACE) depends on fertilization and species Marion Liberloo, Birgit Gielen, Carlo Calfapietra, Caroline Veys, Rossella Pigliacelli, Guiseppe Scarascia-Mugnozza and Reinhart CeulemansAnn. For. Sci., 61 4 (2004) 299-307DOI: https://doi.org/10.1051/forest:2004023