
https://www.jstor.org/stable/pdf/resrep47386.pdf?refreqid=excelsior%3A52df592e24231e44d33302bbc1dca659&ab_segments=&origin=&initiator=&acceptTC=1

https://www.politico.eu/article/gert-jan-koopman-top-eu-official-helps-run-a-luxury-hotel-in-bali-and-never-had-to-tell-brussels/

https://www.occrp.org/en/29leaks/an-offer-they-couldnt-refuse