1. Baker HA, Myers JO (1979) VLF-EM model study and some simple quantitative applications to field results. Geoexploration 17:55–63
2. Bayrak M (2002) Exploration of chrome ore in Southwestern Turkey by VLF-EM. J Balk Geophys Soc 5(2):35–46, 8 figs
3. Benson AK, Payne KL, Stubben MA (1997) Mapping groundwater contamination using dc resistivity and VLF geophysical method—a case study. Geophysics 62(1):80–86
4. Bosch FP, and Müller I (2001) Continuous gradient VLF measurements: a new possibility for high resolution mapping of karst structures. Technical report EAGE, First break 19-6:343-350
5. Bozzo E, Merlanti F, Ranieri G, Sambuelli L, Finzi E (1992) EM-VLF soundings on the Eastern Hill of the archaeological site of Selinunte. Boll Geofis Teor Appl 34(134–135):169–180