On the persistent shape and coherence of pulsating auroral patches

Humberset, B. K., J. W Gjerloev, I. R. Mann, M. Samara, R. G. Michell (2017), On the persistent shape and coherence of pulsating auroral patches, J. Geophys. Res.: Space Phys., doi.org/10.1002/2017JA024405 (pdf)