- ICAO Document 8168 Volume 1
- Earth Curvature and Atmospheric Refraction Effects on Radar Signal Propagation
- Nashua, NH ILS or LOC RWY 14
- ILS Glide Slope Standards 1975
- Distance Measuring Equipment Accuracy Performance Today and for Future Alternative Position Navigation and Timing
- FAA Aeronautical Information Manual Official Guide to Basic Flight Information and ATC Procedures
- GeoGebra model
MCToon 