Faisal Aslam Saqib Raza Fahad Rafique Dogar Irfan Uddin Ahmad Zartash Afzal Uzmi NPP: A Facility Based Computation Framework for Restoration Routing Using Aggregate Link Usage Information. 150-163 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3375&spage=150 2005 conf/qosip/2005 QoS-IP db/conf/qosip/qosip2005.html#AslamRDAU05