TY - JOUR A1 - Heckel, A. A1 - Richter, A. A1 - Tarsu, T. A1 - Wittrock, F. A1 - Hak, C. A1 - Pundt, I. A1 - Junkermann, W. A1 - Burrows, J. P. T1 - MAX-DOAS measurements of formaldehyde in the Po-Valley JO - Atmos. Chem. Phys. J1 - ACP VL - 5 IS - 4 SP - 909 EP - 918 Y1 - 2005/03/21 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/5/909/2005/ L1 - http://www.atmos-chem-phys.net/5/909/2005/acp-5-909-2005.pdf DO - 10.5194/acp-5-909-2005 ER -