@incollection{Paiva08,
author = {Celso de Melo and Ana Paiva},
title = {The Art of Expressing Emotions in Virtual Humans},
booktitle = {Affective Computing},
publisher = {IntechOpen},
address = {Rijeka},
year = {2008},
editor = {Jimmy Or},
chapter = {11},
doi = {10.5772/6179},
url = {https://doi.org/10.5772/6179}
}