https://www.brookings.edu/essay/why-are-fossil-fuels-so-hard-to-quit/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=89176716&utm_source=hs_email
https://insightcrime.org/wp-content/uploads/2023/05/The-Flow-of-Precursor-Chemicals-for-Synthetic-Drug-Production-in-Mexico-InSight-Crime-March-2023-3.pdf
http://www.beaconforfreedom.org/liste.html?tid=415&art_id=475%20