Riezenman, M. Over and over and out [emergency radio systems]. IEEE spectrum.
Lua i Stíl Chicago (17ú heag.)Riezenman, M.J. "Over and over and Out [emergency Radio Systems]." IEEE Spectrum .
Lua MLA (9ú heag.)Riezenman, M.J. "Over and over and Out [emergency Radio Systems]." IEEE Spectrum, .
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