There's always hope: Enhancing agent believability through expectation-based emotions. - Tibor Bosse; Edwin Zwanenburg (ACII, 2009)

Do Prospect-Based Emotions EnhanceBelievability of Game Characters? A CaseStudy in the Context of a Dice Game. - Tibor Bosse; Edwin Zwanenburg (IEEE Trans. Affect. Comput., 2014)