@article {Boutaba023,
   author = {Boutaba, Raouf and Polyrakis, Andreas},
   title = {Extending COPS-PR with Meta-Policies for Scalable Management of IP Networks},
   journal = {Journal of Network and Systems Management},
   publisher = {Springer New York},
   keyword = {Computer Science},
   pages = {91-106},
   volume = {10},
   issue = {1},
   year = {2002}
}