Marcelo Bagnulo Bernardo Alarcos María Calderón Marifeli Sedano ROSA: Realistic Open Security Architecture for Active Networks. 204-215 2002 conf/iwan/2002 IWAN http://link.springer.de/link/service/series/0558/bibs/2546/25460204.htm db/conf/iwan/iwan2002.html#BagnuloACS02