TY - JOUR A1 - Yu, F. T1 - Formation of large NAT particles and denitrification in polar stratosphere: possible role of cosmic rays and effect of solar activity JO - Atmos. Chem. Phys. J1 - ACP VL - 4 IS - 9/10 SP - 2273 EP - 2283 Y1 - 2004/11/23 PB - Copernicus Publications SN - 1680-7316 UR - http://www.atmos-chem-phys.net/4/2273/2004/ L1 - http://www.atmos-chem-phys.net/4/2273/2004/acp-4-2273-2004.pdf ER -