Nielsen, E.; Sofko, G. J.: Ps6 spatial and temporal structure from STARE and Riometer observations. Journal Geophysical Research 87, p. 8157 (1982)

Nielsen, E.; Sofko, G. J.; Axford, W. I.: STARE observations of long discrete echoes. Nature 299, pp. 238 - 240 (1982)

Poulter, E. M.; Nielsen, E.: The interpretation of gound-based observations of energetic electron fluxes modulated by Pc5 hydromagnetic oscillations. Journal Geophysical Research 87, p. 2549 (1982)

Poulter, E. M.; Nielsen, E.: The hydromagnetic oscillation of individual shells of the geomagnetic field. Journal Geophysical Research 87, p. 432 (1982)

Poulter, E. M.; Nielsen, E.; Potemra, T. A.: Field-aligned currents associated with Pc5 pulsaitons:STARE and TRIAD observations. Journal Geophysical Research 87, p. 2331 (1982)

Scholer, M.; Daly, P. W.; Paschmann, G.; Fritz, T. A.: Field line topology determined by energetic particles during a possible magnetopause reconnection event. Journal Geophysical Research 87, pp. 6073 - 6080 (1982)

Sulzbacher, W.; Baumjohann, W.; Potemra, T. A.; Nielsen, E.; Gustafsson, G.: Observations of ionospheric and filed-aligned currents in the later afternoon sector with TRIAD and the Scandinavian magnetometer array. Journal Geophysical Research 50, p. 55 (1982)

Zi, M.; Nielsen, E.: Spatial variations of electric fields in the high latitude ionosphere. Journal Geophysical Research 87, p. 5202 (1982)

Andrews, M. K.; Daly, P. W.; Keppler, E.: Ion jetting at the plasma sheet boundary: simultaneous observations of incident and reflected particles. Geophysical Research Letters 8, pp. 987 - 990 (1981)

Andrews, M. K.; Keppler, E.; Daly, P. W.: Plasma sheet motions inferred from medium-energy ion measurements. Journal Geophysical Research 86, pp. 7543 - 7556 (1981)

Baumjohann, W.; Pellinen, R. J.; Opgenoorth, H. J.; Nielsen, E.: Joint two-dimensional observations of ground magnetic and ionospheric electric fields associated with auroral zone currents. 4. Current system associated with local auroral breakups. Planetary and Space Science 29, p. 431 (1981)

Daly, P. W.; Williams, D. J.; Russell, C. T.; Keppler, E.: Particle signature of magnetic flux transfer events at the magnetopause. Journal Geophysical Research 86, pp. 1628 - 1632 (1981)

Inhester, B.; Baumjohann, W.; Greenwald, R. A.; Nielsen, E.: Joint two-dimensional observations of ground magnetic and ionospheric electric fields associated with auroral zone currents - 32. Auroral zone currents during the passage of a westward travelling surge. Journal Geophysical Research 49, p. 155 (1981)

Scourfield, M. W. J.; Nielsen, E.: Evening (Harang) and morning discontinuities in ionospheric electron drifts and their dependence on the interplanetary magnetic field. Journal Geophysical Research 86, p. 681 (1981)

Freedhoff, H. S.; Markiewicz, W. J.: Retarded multiple interactions: a continuum summation. J. Phys. C: Solid St. Phys. 13, pp. 5315 - 5328 (1980)

Nielsen, E.: Dynamics and spatial scale of auroral absorption spikes associated with the substorm expansion phase. Journal Geophysical Research 85, p. 2092 (1980)

Theile, B.; Maurer, H.; Nielsen, E.; Greenwald, R. A.; Ranta, A.: Ground-based observations of an isolated substorm. Planetary and Space Science 28, p. 763 (1980)

Hargreaves, J. K.; Chivers, H. J. A.; Nielsen, E.: Properties of spike events in auroral radio absorption. Journal Geophysical Research 84, p. 4245 (1979)

Nielsen, E.; Greenwald, R. A.: Electron flow and visual aurora at the Harang discontinuity. Journal Geophysical Research 84, p. 5645 (1979)

Axford, W. I.; Keller, H. U.: Are comets dirty snowballs or dust swarms? Nature 273, pp. 427 - 428 (1978)