@Article{acp-3-1191-2003, AUTHOR = {Heintzenberg, J. and Hermann, M. and Theiss, D.}, TITLE = {Out of Africa: High aerosol concentrations in the upper troposphere over Africa}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {3}, YEAR = {2003}, NUMBER = {4}, PAGES = {1191--1198}, URL = {http://www.atmos-chem-phys.net/3/1191/2003/}, DOI = {10.5194/acp-3-1191-2003} }