TY - BOOK ID - 137181870 TI - GPS disruptions : efforts to assess risks to critical infrastructure and coordinate agency actions should be enhanced : report to congressional requesters. PY - 2013 PB - [Washington, D.C.] : United States Government Accountability Office, DB - UniCat KW - Global Positioning System. KW - Electromagnetic interference. KW - Infrastructure (Economics) KW - United States. KW - Rules and practice. UR - https://www.unicat.be/uniCat?func=search&query=sysid:137181870 AB - ER -