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5by Ghobadi, Hossein, Spogli, Luca, Alfonsi, Lucilla, Cesaroni, Claudio, Cicone, Antonio, Linty, Nicola, Romano, Vincenzo, Cafaro, MassimoSubjects: “...Galileo signals...”
Published in GPS Solutions (2020)
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7by Halpern, Joel MartinSubjects: “...Traffic signs & signals...”
Published 1982
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14by Kyhn, Line A., Tougaard, Jakob, Beedholm, Kristian, Jensen, Frants H., Ashe, Erin, Madsen, Peter T., Williams, RobertSubjects: “...Echolocation signals...”
Published in PLoS ONE (2013)
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15by Sorensen, Clarence Woodrow, 1907-1982; Harris, Eugene V., 1913-1978Subjects: “...Traffic signs & signals...”
Published 1934
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16by Shaffer, Jessica Ward, Moretti, David, Jarvis, Susan, Tyack, Peter, Johnson, MarkSubjects: “...Echolocation signals...”
Published in The Journal of the Acoustical Society of America (2013)
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17by Sorensen, Clarence Woodrow, 1907-1982; Harris, Eugene V., 1913-1978Subjects: “...Traffic signs & signals...”
Published 1959
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18by McCaffrey, Charles W.Subjects: “...Signals intelligence (SIGINT)...”
Published 2000
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