RTCA DO-339
RTCA DO-339 2012-JUN-13 Arcraft Derved Meteorologcal Data va Data Lnk for Wake Vortex Ar Traffc Management and Weather ApplcatonsOperatonal Servces and Envronmental Defnton OSED-To Purchase Call 1-800-854-7179 USACanada or 303-397-7956 Worldwde