[Achache, J., Abtout, A., and Le Mouël, J.-L., 1987. The downward continuation of Magsat Crustal Anomaly Field over Southeast Asia. Journal of Geophysical Research, 92, 11584-11596.10.1029/JB092iB11p11584]Search in Google Scholar
[Alldredge, L.R., 1981. Rectangular Harmonic Analysis applied to the geomagnetic field. Journal of Geophysical Research, 86, 3021-3026.10.1029/JB086iB04p03021]Search in Google Scholar
[Asgharzadeh, M.F., von Frese, R.R.B., and Kim, H.R., 2008. Spherical prism magnetic effects by Gauss- Legendre quadrature integration. Geophysical Journal International, 173, 315-333. https://doi.org/10.1111/j.1365-246X.2007.03692.x10.1111/j.1365-246X.2007.03692.x]Search in Google Scholar
[Backus, G., Constable, C. and Parker, R., 1996. Foundations of Geomagnetism. New York, NY: Cambridge University Press.]Search in Google Scholar
[Bloxham, J., and Gubbins, D., 1986. Geomagnetic fiels analysis IV - Testing the frozen flux hypothesis. Geophysical Journal of the Royal Astronomical Society, 84, 139-152.10.1111/j.1365-246X.1986.tb04349.x]Search in Google Scholar
[Chiappini, M., Meloni, A., Boschi, E., Faggioni, O., Beverini, N., Carmisciano, C., Marson, I., 2000. Shaded relief magnetic anomaly map of Italy and surrounding marine areas. Annals of Geophysics, 43/5, 983-989. https://doi.org//10.4401/ag-3676]Search in Google Scholar
[De Santis, A., Battelli, O., and Kerridge, D.J., 1990. Spherical cap harmonic analysis applied to regional field for Italy. Journal of geomagnetism and geoelectricity, 42, 1019-1036.10.5636/jgg.42.1019]Search in Google Scholar
[Duka, B., Duka, E. and Peqini, K., 2016. Recovering external contribution from the monthly mean series of a given geomagnetic observatory. Annals of Geophysics, 59/3, G0321. https://doi.org/10.4401/ag-697110.4401/ag-6971]Search in Google Scholar
[Duka, B., Gaya-Piqué, L. R., De Santis, A., Bushati, S., Chiappini, M. and Dominici, G., 2004. A geomagnetic reference model for Albania, Southern Italy and the Ionian Sea from 1990 to 2005. Annals of Geophysics, 47/5, 1609-1615.]Search in Google Scholar
[Düzgit, Z. and Malin, S.R.C., 2000. Assessment of regional geomagnetic field modeling methods using a standard data set: spherical cap harmonic analysis. Geophysical Journal International, 141, 829-831.10.1046/j.1365-246x.2000.00099.x]Search in Google Scholar
[Finlay, C.C., Olsen, N. and Tøffner - Clausen, L., 2015. DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model. Earth, Planets and Space 67, 114. https://doi.org/10.1186/s40623-015-0274-310.1186/s40623-015-0274-3]Search in Google Scholar
[Haines. G.V., 1985. Spherical cap harmonic analysis. Journal of Geophysical Research, 90, B3, 2583-2591.10.1029/JB090iB03p02583]Search in Google Scholar
[Jacobs, J. A. (ed.), 1991. Geomagnetism 4. Academic Press, London, 481 pp.]Search in Google Scholar
[Khesin, B.E., Alexeyev, V.V. and Eppelbaum, L.V., 1996. Interpretation of Geophysical Fields in Complicated Environments. Kluwer Academic Publishers, Series: Modern Approaches in Geophysics, Boston - Dordrecht-London, 368 pp.10.1007/978-94-015-8613-9]Search in Google Scholar
[Lowrie, W., 2007. Fundamentals of Geophysics, 2nd edition, Cambridge University Press, Cambridge, UK, 381 pp.]Search in Google Scholar
[Macmillan, S., and Thomson, A., 2003. An examination of observatory biases during the Magsat and Ørsted missions. Physics of the Earth and Planetary Interiors, 135, 97-105. https://doi.org/10.1016/S0031-9201(02)00209-110.1016/S0031-9201(02)00209-1]Search in Google Scholar
[Mandea, M. and Langlais, B., 2002. Observatory Crustal Magnetic Biases during MAGSAT and Oersted Satellite Missions. Geophysical Research Letters, 29/15, 8003. https://doi.org/10.1029/2001GL01369310.1029/2001GL013693]Search in Google Scholar
[Maus, S., 2010. An ellipsoidal harmonic representation of Earth’s lithospheric magnetic field to degree and order 720. Geochemistry, Geophysics, Geosystems, 11, Q06015. https://doi.org/10.1029/2010GC003026.10.1029/2010GC003026]Search in Google Scholar
[Maus, S. and Haak, V., 2002. Is the Long Wavelength Crustal Magnetic Field Dominated by Induced or by Remanent Magnetization? Journal of Indian Geophysical Union, 6/1, 1-5.]Search in Google Scholar
[Mayhew, M.A., 1979. Inversion of satellite magnetic anomaly data. Journal of Geophysics, 45, 119-128.]Search in Google Scholar
[Merrill, R. and Mcfadden, P.H., 1999. Geomagnetic polarity transitions. Reviews of Geophysics, 37, 201-226. https://doi.org/10.1029/1998RG90000410.1029/1998RG900004]Search in Google Scholar
[Nakagawa, I. and Yukutake, T., 1985. Rectangular harmonic analysis of geomagnetic anomalies derived from Magsat data over the area of the Japanese islands. Journal of Geomagnetism and Geoelectricity, 37, 957-77.10.5636/jgg.37.957]Search in Google Scholar
[Nolte, H. J. and Hahn, A., 1992. A model of the distribution of crustal magnetization in central Europe compatible with the field of magnetic anomalies deduced from Magsat results. Geophysical Journal International, 111, 483-496.10.1111/j.1365-246X.1992.tb02106.x]Search in Google Scholar
[O’Brien, M.S. and Parker, R.L., 1994. Regularized field modeling using monopoles. Geophysical Journal International, 118, 566-578.10.1111/j.1365-246X.1994.tb03985.x]Search in Google Scholar
[Olsen, N. and Stolle, C., 2016. Magnetic Signatures of Ionospheric and Magnetospheric Current Systems During Geomagnetic Quiet Conditions - An Overview. Space Science Reviews, 206, 5-25. https://doi.org/10.1007/s11214-016-0279-710.1007/s11214-016-0279-7]Search in Google Scholar
[Purucker, M.E., 1990. The computation of vector magnetic anomalies: a comparison of techniques and errors. Physics of the Earth and Planetary Interiors, 62, 231-245.10.1016/0031-9201(90)90168-W]Search in Google Scholar
[Richter, P.H., 1995. Estimating Errors in Least - Squares Fitting. TDA Progress Report, 42-122.]Search in Google Scholar
[Taylor, P.T. and Ravat, D., 1995. An interpretation of the Magsat anomalies of central Europe. Journal of Applied Geophysics, 34, 83-91. https://doi.org/10.1016/0926-9851(95)00015-110.1016/0926-9851(95)00015-1]Search in Google Scholar
[Voigt, G-H., 1981. A mathematical Magnetospheric Field Model with independent physical parameters. Planetary and Space Science, 29, 1-20.10.1016/0032-0633(81)90134-3]Search in Google Scholar
[Wardinski, I. and Holme, R., 2011. Signal from noise in geomagnetic field modeling: de noising data for secular variation studies. Geophysical Journal International, 185, 653-662. https://doi.org/10.1111/j.1365-246X.2011.04988.x.10.1111/j.1365-246X.2011.04988.x]Search in Google Scholar