NASA - National Aeronautics and Space Administration

Chu, X., C. Yamashita, P. J. Espy, G. J. Nott, E. Jensen, H.-L. Liu, W. Huang, and J. Thayer (2002), Response of polar mesospheric cloud brightness to stratospheric gravity waves at the South Pole and Rothera, Antarctica, JASTP, 71, 434-445, doi:10.1016/j.jastp.2008.10.002.