Measuring Energy Efficiency Practices in Mature Data Center: A Maturity Model Approach. - Edward Curry; Gerard Conway; Brian Donnellan; Charles Sheridan; Keith Ellis (ISCIS, 2012)

A Maturity Model for Energy Efficiency in Mature Data Centres. - Edward Curry; Gerard Conway; Brian Donnellan; Charlie Sheridan; Keith Ellis (SMARTGREENS, 2012)

Quantifying the impact of requirements definition and management process maturity on project outcome in large business application development. - Keith Ellis; Daniel M. Berry (Requir. Eng., 2013)

IoT in Agriculture: Designing a Europe-Wide Large-Scale Pilot. - Christopher Brewster; Ioanna Roussaki; Nikos Kalatzis; Kevin Doolin; Keith Ellis (IEEE Commun. Mag., 2017)