Transforming Situation Calculus Action Theories for Optimised Reasoning. - Christopher James Ewin; Adrian R. Pearce; Stavros Vassos (KR, 2014)

Optimizing Long-Running Action Histories in the Situation Calculus Through Search. - Christopher James Ewin; Adrian R. Pearce; Stavros Vassos (PRIMA, 2015)

Optimizing projection in the situation calculus. - Christopher James Ewin (2018)

Mobile devices compared to non-digital toy play: The impact of activity type on the quality and quantity of parent language. - Carrie A. Ewin; Andrea Reupert; Louise A. McLean; Christopher James Ewin (Comput. Hum. Behav., 2021)