TY - JOUR A1 - van der Laan-Luijkx, I. T. A1 - Karstens, U. A1 - Steinbach, J. A1 - Gerbig, C. A1 - Sirignano, C. A1 - Neubert, R. E. M. A1 - van der Laan, S. A1 - Meijer, H. A. J. T1 - CO2, δO2/N2 and APO: observations from the Lutjewad, Mace Head and F3 platform flask sampling network JO - Atmos. Chem. Phys. J1 - ACP VL - 10 IS - 21 SP - 10691 EP - 10704 Y1 - 2010/11/12 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/10/10691/2010/ L1 - https://acp.copernicus.org/articles/10/10691/2010/acp-10-10691-2010.pdf DO - 10.5194/acp-10-10691-2010 ER -