1. Baillie, O., E. Clarke, S. Flower, S. Reay, and C. Turbitt, Reporting quasi-definitive observatory data in near real-time, presentation at the 11th IAGA Assembly, Sopron, 2009 (unpublished).
2. Chulliat, A., A. Peltier, F. Truong, and D. Fouassier, Proposal for a new observatory data product: Quasi-definitive data, presentation at the 11th IAGA Assembly, Sopron, 2009 (unpublished).
3. Danish Meteorological Institute, Fluxgate Magnetometer Model FGE Manual, Danish Meteorological Institute Technical Report, 96–4, ISSN:0906-897X, Copenhagen, 2006.
4. Finlay, C. C, S. Maus, C. D. Beggan, T. N. Bondar, A. Chambodut, T. A. Chernova, A. Chulliat, V. P. Golovkov, B. Hamilton, M. Hamoudi, R. Holme, G. Hulot, W. Kuang, B. Langlais, V. Lesur, F J. Lowes, H. Luhr, S. Macmillan, M. Mandea, S. McLean, C. Manoj, M. Menvielle, I. Michaelis, N. Olsen, J. Rauberg, M. Rother, T. J. Sabaka, A. Tangborn, L. Toffner-Clausen, E. Thebault, A. W. P. Thomson, I. Wardinski, Z. Wei, and T. I. Zvereva, International Geomagnetic Reference Field: The eleventh generation, Geophys. J. Int., 183, 1216–1230, 2010.
5. Friis-Christensen, E., H. Lühr, and G. Hulot, Swarm: A constellation to study the Earth’s magnetic field, Earth Planets Space, 58, 351–358, 2006.