[[1] EASA - AMC 20-26 : Airworthiness Approval and Operational Criteria for RNP AR Operations;]Search in Google Scholar
[[2] EASA - AMC 20-27: Airworthiness Approval and Operational Criteria for RNP APPROACH (RNP APCH) Operations Including APV BARO VNAV Operations;]Search in Google Scholar
[[3] EASA - Helicopters Deploy GNSS in Europe (HEDGE) project documentation, ]Search in Google Scholar
[[4] EGNOS Introduction in European Eastern Region MIELEC project documentation, ]Search in Google Scholar
[[5] FAA - AC 20-129: Airworthiness Approval for Vertical Navigation (VNAV) Systems for Use in the U.S. National Airspace System (NAS) and Alaska;]Search in Google Scholar
[[6] FAA - AC 20-105: Approval Guidance for RNP Operations and Barometric Vertical Navigation in the U.S. National Airspace System;]Search in Google Scholar
[[7] FAA: TSO C145A: Airborne Navigation Sensors Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS);]Search in Google Scholar
[[8] FAA - TSO C146A: Stand-Alone Airborne Navigation Equipment Using the Global Positioning System Augmented by the Wide Area Augmentation System (WAAS);]Search in Google Scholar
[[9] ICAO Annex 10, [10] ICAO Doc 8168 - PANS-OPS, [11] ICAO Doc 9613 - PBN Manual, [12] ICAO Doc 9905 - RNP AR Procedure Design Manual]Search in Google Scholar
