The following links will give you more information on the topics covered in this chapter:
- SAGAS by Hector Garcia-Molina: http://www.cs.cornell.edu/andru/cs711/2002fa/reading/sagas.pdf
- Distributed Sagas: A Protocol for Coordinating Microservices - Caitie McCaffrey - JOTB17: https://www.youtube.com/watch?v=0UTOLRTwOX0
- Feral Concurrency Control: An Empirical Investigation of Modern Application Integrity by Peter Bailis: http://www.bailis.org/papers/feral-sigmod2015.pdf