1. Global Bathymetry and Elevation Data at 30 Arc Seconds Resolution: SRTM30_PLUS
2. Beus A.A. and Grigorian S.V. (1977) Geochemical Exploration Methods for Mineral Deposits. Applied Publishing, Wilmette, Illinois, p.287.
3. Application of Various Geochemical Proximity Indicators to the Tin Favorability of South-Sardinian Granites
4. Breaks, F.W. and Tindle, A.G. (1997) Rare-metal exploration potential of the Separation Lake area: an emerging target for Bikita-type mineralization in the Superior Province of Ontario; Ontario Geological Survey, Open File Report 5966, 27p.
5. Choi, K.S., Yang, C.S., Shin, Y.H. and Ok, S.S. (2003) On the improvement of precision in gravity surveying and correction, and a dense Bouguer anomaly in and around the Korean