
https://www.imperial.ac.uk/media/imperial-college/medicine/sph/ide/gida-fellowships/Imperial-College-COVID19-NPI-modelling-16-03-2020.pdf

https://www.lowyinstitute.org/publications/ukraine-effect-demise-or-rebirth-global-order

https://www.oecd-ilibrary.org/docserver/7e1bf673-en.pdf?expires=1537041018&id=id&accname=guest&checksum=E2E4B144ED9C13DF58246370C7677883