https://assets.cambridge.org/97811084/80932/frontmatter/9781108480932_frontmatter.pdf
https://home.treasury.gov/system/files/136/Treasury_Study_WoA.pdf
https://s3.amazonaws.com/happiness-report/2019/WHR19.pdf
https://www.opendemocracy.net/en/5050/europes-aristocratic-elite-in-the-fight-against-womens-and-lgbt-rights/