@incollection{Ribeiro07,
author = {Joao Sequeira and M.Isabel Ribeiro},
title = {Semiotics and Human-Robot Interaction},
booktitle = {Human Robot Interaction},
publisher = {IntechOpen},
address = {Rijeka},
year = {2007},
editor = {Nilanjan Sarkar},
chapter = {18},
doi = {10.5772/5200},
url = {https://doi.org/10.5772/5200}
}