http://library.fes.de/pdf-files/bueros/wien/19110-20220517.pdf
https://apps.dtic.mil/sti/pdfs/AD1151522.pdf
https://climact.com/en/opportunities-to-get-eu-industry-off-natural-gas-quickly/
https://isc.independent.gov.uk/wp-content/uploads/2021/01/20200721_Russia_Press_Notice.pdf
https://drive.google.com/file/d/1uYUIccweuswFKX_UlmvzhOvoX4gNFuoA/view
https://www.bruegel.org/wp-content/uploads/2022/02/PC-04.pdf
https://www.pourletravailsocial.org/download/andrei-makine.pdf
https://www.auswaertiges-amt.de/blob/2405080/23e76da338f1a1c06b1306c8f5f74615/201013-nap-monitoring-abschlussbericht-data.pdf
https://thedocs.worldbank.org/en/doc/1692f2ba2bd6408db82db9eb3894a789-0400072022/original/2022-Global-Gas-Flaring-Tracker-Report.pdf