https://www.econstor.eu/bitstream/10419/266146/1/1820832732.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/680366/Technical_Note_-_International_Agreements_in_the_Implementation_Period_-_CLEAN.pdf
https://fpc.org.uk/wp-content/uploads/2021/10/FPC-WFD-Global-Britain-for-an-open-world.pdf
https://www.state.gov/wp-content/uploads/2020/02/Agreement-For-Bringing-Peace-to-Afghanistan-02.29.20.pdf