http://unctad.org/en/PublicationsLibrary/wir2017_en.pdf
https://www.mckinsey.com/mgi/our-research/global-trade-explorer?sector=0ag
https://www.veblen-institute.org/IMG/pdf/aubert_hdef.pdf
https://www.vox.com/recode/22955381/russia-ukraine-bitcoin-donation-war-crypto?utm_source=newsletter&utm_medium=email&utm_campaign=16%2F03%2F22+++(Copy)