TY - JOUR A1 - Keppler, F. A1 - Kalin, R. M. A1 - Harper, D. B. A1 - McRoberts, W. C. A1 - Hamilton, J. T. G. T1 - Carbon isotope anomaly in the major plant C1 pool and its global biogeochemical implications JO - Biogeosciences J1 - BG VL - 1 IS - 2 SP - 123 EP - 131 Y1 - 2004/12/13 PB - Copernicus Publications SN - 1726-4189 UR - http://www.biogeosciences.net/1/123/2004/ L1 - http://www.biogeosciences.net/1/123/2004/bg-1-123-2004.pdf DO - 10.5194/bg-1-123-2004 ER -