@Article{acp-5-9-2005, AUTHOR = {Frankenberg, C. and Platt, U. and Wagner, T.}, TITLE = {Iterative maximum a posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH$_{4}$ and CO$_{2}$ retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {5}, YEAR = {2005}, NUMBER = {1}, PAGES = {9--22}, URL = {http://www.atmos-chem-phys.net/5/9/2005/}, ISSN = {1680-7316} }