Gauss' H-Variometer at the Helsinki Magnetic Observatory 1844-1912.
- 1 January 1997
- journal article
- Published by Society of Geomagnetism and Earth, Planetary and Space Sciences in Journal of geomagnetism and geoelectricity
- Vol. 49 (10), 1209-1215
- https://doi.org/10.5636/jgg.49.1209