The background absorption at high latitudes

by M. Harrich, M. Friedrich, S. R. Marple, K. M. Torkar
Published 2003-01-01

Signatures of mesospheric particles in ionospheric data

by M. Friedrich, K. M. Torkar, W. Singer, I. Strelnikova, M. Rapp, S. Robertson
Published 2009-02-01

Multi-instrument comparisons of D-region plasma measurements

by M. Friedrich, K. M. Torkar, U.-P. Hoppe, U.-P. Hoppe, T.-A. Bekkeng, A. Barjatya, M. Rapp, M. Rapp
Published 2013-01-01