
https://blogs.lse.ac.uk/europpblog/2025/10/31/germanys-housing-crisis-is-making-europes-sick-man-even-sicker/

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/707785/Building_a_Safer_Future_-_web.pdf

http://jdmichel.blog.tdg.ch/archive/2020/03/18/covid-19-fin-de-partie-305096.html