Instrument flying supported by EGNOS for general aviation
Procedure Turn Basics - IFR Magazine
Instrument Flight Procedure Design - NLR
Instrument Flight Procedures
Instrument Procedures Handbook | Rmflight
Hickok & Associates Develops Detailed Criteria for IFR Helo Ops | News: Aviation International News
ICAO - International Civil Aviation Organization - The seventh edition of Volume II - Construction of Visual & Instrumental Flight Procedure (Doc 8168) includes ICAO's most up-to-date guidelines for helping States achieve
Flight Time Instrument Flight Review, Pilots Handbooks and Guides, Instrument-Flight-Review