Fonseca, M., and N. Agoulmine. “End to End IP QoS Assurance Using Policy Based Multi-Agents SLA Management Systems<br /&gt;10.14209/Jcis.2003.3”. Journal of Communication and Information Systems, Vol. 18, no. 1, June 2015, https://jcis.sbrt.org.br/jcis/article/view/322.