000 00491nam a2200109Ia 4500
008 230817s9999 xx 000 0 und d
100 _aNational Research Council.
245 0 _aGrowing Vulnerability of the Public Switched Networks Implications for National Security Emergency Preparedness
650 _aComputer science, information & general works
856 _uhttps://new.zodml.org/sites/default/files/2023-07/epdf.pub_growing-vulnerability-of-the-public-switched-netwo.pdf
942 _cEBK
999 _c36875
_d36875