Causal references

[florianhartig]

https://bsky.app/profile/aaronjfisher.bsky.social/post/3lbprczrsls2x

[florianhartig]

https://matheusfacure.github.io/python-causality-handbook/12-Doubly-Robust-Estimation.html

[florianhartig]

https://matheusfacure.github.io/python-causality-handbook/landing-page.html