@Article{acpd-5-3723-2005, AUTHOR = {Twohy, C. H. and Poellot, M. R.}, TITLE = {Chemical characteristics of ice residual nuclei in anvil cirrus clouds: evidence for homogeneous and heterogeneous ice formation}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {5}, YEAR = {2005}, NUMBER = {3}, PAGES = {3723--3745}, URL = {http://www.atmos-chem-phys-discuss.net/5/3723/2005/}, ISSN = {1680-7367} }