Nitric Acid in Polar Stratospheric Clouds: Similar Temperature Thresholds of...
Pueschel, R., K. G. Snetsinger, P. Hammill, J. Goodman, and P. M. McCormic (1990), Nitric Acid in Polar Stratospheric Clouds: Similar Temperature Thresholds of Nitric Acid Condensation and Cloud Formation, Geophys. Res. Lett., 17, 429-432.