https://publications.parliament.uk/pa/cm201719/cmselect/cmhaff/961/961.pdf
http://www2.warwick.ac.uk/fac/soc/pais/research/researchcentres/irs/crossingthemed/ctm_final_report_4may2017.pdf
https://www.politico.eu/article/france-america-charles-michel-armenia-azerbaijan-nagorno-karabakh-refugees/
http://www.bertelsmann-stiftung.de/fileadmin/files/Projekte/Migration_fair_gestalten/IB_Study_MixedMigration2017_ENG.pdf