TY - JOUR A1 - Heintzenberg, J. A1 - Hermann, M. A1 - Theiss, D. T1 - Out of Africa: High aerosol concentrations in the upper troposphere over Africa JO - Atmos. Chem. Phys. J1 - ACP VL - 3 IS - 4 SP - 1191 EP - 1198 Y1 - 2003/08/13 PB - Copernicus Publications SN - 1680-7316 UR - http://www.atmos-chem-phys.net/3/1191/2003/ L1 - http://www.atmos-chem-phys.net/3/1191/2003/acp-3-1191-2003.pdf ER -