The Hourglass of Emotions. - Erik Cambria; Andrew G. Livingstone; Amir Hussain 001 (COST 2102 Training School, 2011)

All click, no action? Online action, efficacy perceptions, and prior experience combine to affect future collective action. - Denise J. Wilkins; Andrew G. Livingstone; Mark Levine (Comput. Hum. Behav., 2019)

The Hourglass Model Revisited. - Yosephine Susanto; Andrew G. Livingstone; Ng Bee Chin; Erik Cambria (IEEE Intell. Syst., 2020)