Zeitschriftenartikel
Chen, J.; Fritz, T. A.; Sheldon, R. B.; Spence, H. E.; Spjeldvik, W. N.; Fennell, J. F.; Livi, S.: A new, temporally confined population in the polar cap during the August 27, 1996 geomagnetic field distortion period. Geophysical Research Letters
24, S. 1447 - 1450 (1997)