The Geomagnetic Observatory on Tristan da Cunha: Setup, Operation and Experiences. - Jürgen Matzka; Bjørn-Ove Husøy; Alan Berarducci; David Wright; Lars W. Pedersen; Claudia Stolle; Robin Repetto; Leo Genin; Laszlo Merenyi; Jason J. Green (Data Sci. J., 2011)