Transportation Research Board (TRB) 1 : A unit of the National Research Council whose purpose is to advance knowledge about transportation systems; publishes the Highway Capacity Manual
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}