М. Kurylo, O. Plotnikov, О. С. Прокопенко (2020). CUT-OFF GRADE DETERMINATION PECULIARITIES FOR 3D MODELING OF UKRAINIAN BIF DEPOSITS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th SGEM International Multidisciplinary Scientific GeoConference Proceedings 2020, Science and Technologies in Geology, Exploration And Mining, 75-82. https://doi.org/10.5593/sgem2020/1.1/s01.008