Preliminary examiner of the Doctoral Thesis of Tapio Pursimo, University of Turku, M. Tornikoski.
Referee for Astronomy and Astrophysics, A. Lähteenmäki, M. Tornikoski, T. Liljeström.
Referee for The Astrophysical Journal, T. Liljeström.
Referee for Solar Physics, S. Urpo.