@article {Boutaba042,
   author = {Boutaba, Raouf and Polyrakis, Andreas and Casani, Alvaro},
   title = {Active networks as a developing and testing environment for network protocols},
   journal = {Annals of Telecommunications},
   publisher = {Springer Paris},
   pages = {505-524},
   volume = {59},
   issue = {5},
   year = {2004}
}