https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/1791/1791.pdf
https://www.brookings.edu/blog/up-front/2020/05/15/developing-policies-for-effective-covid-19-containment-the-trace-model/?utm_campaign=BrookingsBrief&utm_source=hs_email&utm_medium=email&utm_content=88024714
https://insightcrime.org/news/australia-new-zealand-world-most-expensive-cocaine-markets/
http://documents.worldbank.org/curated/en/356091537360897955/pdf/WPS8588.pdf