RETRACTED ARTICLE: CO2 effects on plant nutrient concentration depend on plant functional group and available nitrogen: a meta-analysis
Plant Ecology (2012) - Comments
doi: 10.1007/s11258-011-9998-8  issn: 1385-0237  issn: 1573-5052 

Benjamin D. Duval, Joseph C. Blankinship, Paul Dijkstra, Bruce A. Hungate