https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue English RomanAbramovich in 2021 determination method: SHA-1
English: Some of the Russian oligarchs (from top left to bottom): RomanAbramovich, Oleg Deripaska, Alisher Usmanov, Vladimir Potanin, Mikhail Prokhorov