by Routledge, G., Kosch, M.J., Senior, A., Kavanagh, A.J., McCrea, I.W., Rietveld, M.T.
Published in Journal of atmospheric and solar-terrestrial physics (01.03.2011)

by Eglitis, P., McCrea, I.W., Robinson, T.R., Jones, T.B., Schlegel, K., Nygren, T.
Published in Journal of atmospheric and terrestrial physics (1996)

by Williams, P.J.S., Virdi, T.S., Lewis, R.V., Lester, M., Rodger, A.S., McCrea, I.W., Freeman, K.S.C.
Published in Journal of atmospheric and terrestrial physics (01.03.1993)

by Lockwood, M, McCrea, I.W, Millward, G.H, Moffett, R.J, Rishbeth, H
Published in Journal of atmospheric and terrestrial physics (01.05.1993)