@article{Boutaba07,
 author = {Boutaba, Raouf and Aib, Issam},
 title = {Policy-based Management: A Historical Perspective},
 journal = {J. Netw. Syst. Manage.},
 volume = {15},
 issue = {4},
 month = {December},
 year = {2007},
 pages = {447--480},
 publisher = {Plenum Press},
}