Good reading on when "doubly robust" is worth the effort?

I enjoyed this one - Doubly Robust estimation for loss-based measures under covariate shift:

PubMed Central (PMC)

Robust Estimation of Loss-Based Measures of Model Performance under Covariate...

We present methods for estimating loss-based measures of the performance of a prediction model in a target population that differs from the source population in which the model was developed, in settings where outcome and covariate data are ...