ΠΑΠΑΘΕΟΦΑΝΟΥΣ Γ., ΣΚΙΑΝΗΣ Γ., ΠΑΠΑΔΟΠΟΥΛΟΣ Τ., and ΝΙΚΟΛΑΟΥ Σ. “A Combination of Self-Potential and Schlumberger VES Measurements for Subsurface Layering Investigations”. Bulletin of the Geological Society of Greece, vol. 34, no. 4, Jan. 2001, pp. 1335-42, doi:10.12681/bgsg.17224.