by Ling, A G, Ginet, G P, Hilmer, R V, Perry, K L
Published in Space Weather (01.09.2010)

by Toffoletto, F. R., Hilmer, R. V., Hill, T. W., Voigt, G.-H.
Published in Geophysical research letters (01.04.1994)

by Hilmer, R.V, Ginet, G.P
Published in Journal of atmospheric and solar-terrestrial physics (01.09.2000)

by WEISS, L. A., REIFF, P. H., HILMER, R. V., WINNINGHAM, J. D., LU, G.
Published in Journal of geomagnetism and geoelectricity (01.01.1992)