@inproceedings {1999, title = {What Emotions are Necessary for HCI?}, booktitle = {Human-Computer Interaction: Ergonomics and User Interfaces Vol. 1}, year = {1999}, pages = {838{\textendash}842}, publisher = {Taylor \& Francis}, organization = {Taylor \& Francis}, address = {Munich, Germany}, isbn = {978-080583391-1}, author = {D Ca{\~n}amero}, editor = {Hans-Jorg Bullinger and Jurgen Ziegler} }