1. Adam, D. 2022. COVID’s true death toll: Much higher than official records. Nature (online). https://www.nature.com/articles/d41586-022-00708-0.
2. AT&T. 1988. AT&T quality improvement cycle. https://books.google.com/books/about/AT_T_Quality_Improvement_Cycle.html?id=2zDIAAAACAAJ.
3. Biemer, P., J. Salvo, and J. Auerbach. 2021. The quality of the 2020 census. Alexandria, VA: American Statistical Association. https://arxiv.org/abs/2110.02135?context=stat
4. Robust designs