TY - JOUR A1 - Mironova, I. A. A1 - Usoskin, I. G. T1 - Possible effect of extreme solar energetic particle events of September–October 1989 on polar stratospheric aerosols: a case study JO - Atmos. Chem. Phys. J1 - ACP VL - 13 IS - 17 SP - 8543 EP - 8550 Y1 - 2013/09/02 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/13/8543/2013/ L1 - https://acp.copernicus.org/articles/13/8543/2013/acp-13-8543-2013.pdf DO - 10.5194/acp-13-8543-2013 ER -