Write Experiment 12: Work Out the Structure of Repeating Units

Chip Heath and Dan Heath. The Power of Moments. Simon and Shuster, 2017.
Marie-Josée Shaar and Kathryn Britton, Smarts and Stamina: The Busy Person’s Guide to Health and Optimal Performance. Positive Psychology Press, 2011.
Kathryn Britton, A Repeatable Structure in Action. Sit Write Share blog, April 1, 2022.