Potential Vorticity Estimates in the South Polar Vortex from ER-2 Data

The core information for this publication's citation.: 
Hartmann, R. Chan, B. L. Gary, M. R. Schroeberl, P. Newman, R. L. Martin, M. Loewenstein, J. Podolske, and S. Strahan (1989), Potential Vorticity Estimates in the South Polar Vortex from ER-2 Data, J. Geophys. Res., 94, 11,625-11.