@Article{acp-5-2881-2005,
AUTHOR = {Hak, C. and Pundt, I. and Trick, S. and Kern, C. and Platt, U. and Dommen, J. and Ord\'o\~nez, C. and Pr\'ev\^ot, A. S. H. and Junkermann, W. and Astorga-Llor\'ens, C. and Larsen, B. R. and Mellqvist, J. and Strandberg, A. and Yu, Y. and Galle, B. and Kleffmann, J. and L\"orzer, J. C. and Braathen, G. O. and Volkamer, R.},
TITLE = {Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {5},
YEAR = {2005},
NUMBER = {11},
PAGES = {2881--2900},
URL = {http://www.atmos-chem-phys.net/5/2881/2005/},
DOI = {10.5194/acp-5-2881-2005}
}
@Article{acp-7-121-2007,
AUTHOR = {Liu, L. and Flat{\o}y, F. and Ord\'o\~nez, C. and Braathen, G. O. and Hak, C. and Junkermann, W. and Andreani-Aksoyoglu, S. and Mellqvist, J. and Galle, B. and Pr\'ev\^ot, A. S. H. and Isaksen, I. S. A.},
TITLE = {Photochemical modelling in the Po basin with focus on formaldehyde and ozone},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {7},
YEAR = {2007},
NUMBER = {1},
PAGES = {121--137},
URL = {http://www.atmos-chem-phys.net/7/121/2007/},
DOI = {10.5194/acp-7-121-2007}
}