P. Ansola, A. Garc\'ıa, and J. Morenas. Service Orientation in Holonic and Multi-Agent Manufacturing, volume 594 of Studies in Computational Intelligence, Springer, Cham, (2015)
P. Rangel, J. Carvalho Junior, M. Ramirez, and J. de Souza. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, page 116--121. Los Alamitos, CA, IEEE Computer Society CPS, (2010)