S. E. Hjelt

Regional EM studies in the 80's

S. E. Hjelt, S. Hjelt, 1988 .

Linear filtering of VLF dip-angle measurements

S. E. Hjelt, S. Hjelt, M. Karous, 1983 .

Complex lithospheric structure under the central Baltic Shield from surface wave tomography

Pierre Vacher, Pekka Heikkinen, Annakaisa Korja, 2004 .

Electromagnetic studies on the Kola peninsula and in Northern Finland by means of a powerful controlled source

Michael S. Zhdanov, I. V. Belkov, T. Korja, 1986 .