Ladanivskyy, B., and I. Logvinov. “Long-Period (300—400000000 S) Induction Soundings and the Conductivity of the Mantle of Eastern and Southern Carpathians and Balkanides”. Reports of the National Academy of Sciences of Ukraine, no. 6, May 2024, pp. 83-90, doi:10.15407/dopovidi2018.06.083.