Starostenko, V. I., P. Ya. Kuprienko, I.B. Makarenko, A. Savchenko, and O.V. Legostaeva. 2017. “Earth’s Crust Composition of the Ingul Megablock of the Ukrainian Shield (types of Crust) and Patterns of Location of Ore Mineral Resources”. Geofizičeskij žurnal 39 (5):27-46. https://doi.org/10.24028/gzh.0203-3100.v39i5.2017.112338.