-Ukraine Oligarchy-
https://www.business-standard.com/article/international/ukraine-crisis-us-sanctions-on-russian-oligarchs-miss-richest-of-rich-122022600497_1.html
Ukraine crisis: US sanctions on Russian oligarchs miss richest of rich
Some oligarchs have also obtained dual citizenship in Britain and other Western countries, adding legal complications to attempts to unilaterally seize their assets
https://www.atlanticcouncil.org/blogs/ukrainealert/taming-ukraines-oligarchs/
Atlantic Council
Peter Dickinson
Taming Ukraine’s oligarchs
Serhiy Verlanov argues that until Ukraine has the political will to take on the country's all-powerful oligarchs, there is little chance of realizing the potential that has remained untapped since 1991.
https://www.icij.org/investigations/fincen-files/with-deutsche-banks-help-an-oligarchs-buying-spree-trails-ruin-across-the-us-heartland/
ICIJ
With Deutsche Bank’s help, an oligarch’s buying spree trails ruin a…
Secret transactions, lost jobs, worker injuries, gutted buildings, unpaid bills: Ihor Kolomoisky’s untold American legacy.