- BBN, RFC 677
- Lamport, Time, Clocks, and the Ordering of Events in a Distributed System
- Version vectors, Detection of Mutual Inconsistency in Distributed Systems
- Vector clocks, Timestamps in Message-Passing Systems That Preserve the Partial Ordering
- Hybrid clocks, Logical Physical Clocks and Consistent Snapshots in Globally Distributed Databases
- Interval tree clocks, Interval Tree Clocks: A Logical Clock for Dynamic Systems
- Jon Moore, Strange Loop 2015, How to Have your Causality and Wall Clocks, Too
- Justin Sheehy, There Is No Now
- Carlos Baquero, Version Vectors are not Vector Clocks
- John Daily, Clocks Are Bad, Or, Welcome to the Wonderful World of Distributed Systems
- Basho's CRDT library riak_dt
- Chris Meiklejohn's Readings in conflict-free replicated data types
- Berkeley's BOOM project
- Chris Meiklejohn's LASP