On the Impact of Variation on Self-Organizing Systems. - Adam Campbell; Cortney Riggs; Annie S. Wu (SASO, 2011)

Variation as an element in multi-agent control for target tracking. - Cortney Riggs; Annie S. Wu (IROS, 2012)

Inter-Agent Variation Improves Dynamic Decentralized Task Allocation. - Annie S. Wu; Cortney Riggs (FLAIRS, 2018)