@Article{acp-6-897-2006, AUTHOR = {Blumenstock, T. and Kopp, G. and Hase, F. and Hochschild, G. and Mikuteit, S. and Raffalski, U. and Ruhnke, R.}, TITLE = {Observation of unusual chlorine activation by ground-based infrared and microwave spectroscopy in the late Arctic winter 2000/01}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {6}, YEAR = {2006}, NUMBER = {4}, PAGES = {897--905}, URL = {http://www.atmos-chem-phys.net/6/897/2006/}, ISSN = {1680-7316} }