01326nam 2200397 450 991081006220332120230814220045.00-309-46740-30-309-46738-1(CKB)4340000000273166(MiAaPQ)EBC5359337(EXLCZ)99434000000027316620180519d2018 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierEmergency alert and warning systems current knowledge and future research directions /The National Academies of Sciences, Engineering, MedicineWashington, DC :The National Academies Press,[2018]©20181 online resource (xiv, 128 pages) illustrations0-309-46737-3 Emergency communication systemsUnited StatesPublic safety radio serviceUnited StatesEmergency communication systemsPublic safety radio service363.34068National Academies of Sciences, Engineering, Medicine.MiAaPQMiAaPQMiAaPQBOOK9910810062203321Emergency alert and warning systems4097871UNINA