MAP20080053574 Okpara, Uche Securing passenger aircraft from the threat of man-portable air defense systems / Uche Okpara, Vicki M. Bier En: Risk analysis : an international journal. - McLean, Virginia : Society for Risk Analysis, 1987-2015 = ISSN 0272-4332. - 01/12/2008 Tomo 28 Número 6 - 2008