@inproceedings { baraka70, booktitle = {International conference on Autonomous Agents and Multiagent Systems}, keywords = {Intelligent Virtual Agents;Social Robotic Companions;}, title = {An optimization approach for structured agent-based provider/receiver tasks}, year = {2019 (to appear)}, author = {Kim Baraka and Marta Couto and Francisco S Melo and Manuela Veloso} }