Não informado. (2009). OAR Cumulative Index of Research Results. Air Force, Office of Aerospace Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. OAR Cumulative Index of Research Results. Washington: Air Force, Office of Aerospace Research, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. OAR Cumulative Index of Research Results. Air Force, Office of Aerospace Research, 2009.
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