http://www.ips-journal.eu/regions/europe/article/show/the-new-east-bloc-is-open-for-business-2523/
https://carnegieendowment.org/files/PageVittori_DubaiCorruption_final.pdf
https://www.osw.waw.pl/sites/default/files/OSW-Report_The-middle-corridor_net.pdf