TY - JOUR A1 - Reddmann, T. A1 - Uhl, R. T1 - The H Lyman-a actinic flux in the middle atmosphere JO - Atmos. Chem. Phys. J1 - ACP VL - 3 IS - 1 SP - 225 EP - 231 Y1 - 2003/02/20 PB - Copernicus Publications SN - 1680-7316 UR - http://www.atmos-chem-phys.net/3/225/2003/ L1 - http://www.atmos-chem-phys.net/3/225/2003/acp-3-225-2003.pdf ER -