TY - JOUR A1 - Velinov, P. I. Y. A1 - Mateev, L. A1 - Kilifarska, N. T1 - 3-D model for cosmic ray planetary ionisation in the middle atmosphere JO - Ann. Geophys. J1 - ANGEO VL - 23 IS - 9 SP - 3043 EP - 3046 Y1 - 2005/11/22 PB - Copernicus Publications SN - 1432-0576 UR - http://www.ann-geophys.net/23/3043/2005/ L1 - http://www.ann-geophys.net/23/3043/2005/angeo-23-3043-2005.pdf DO - 10.5194/angeo-23-3043-2005 ER -