Policy on Intellectual Property Right (IPR)
Annex 1
 1    
The formula for the radio refractive index
 2    
Surface refractivity and height dependence
        2.1    
Refractivity as a function of height
        2.2    
Wet term of the surface refractivity
 3    
Vertical refractivity gradients
        3.1    
In the first kilometre of the atmosphere
        3.2    
In the lowest atmospheric layer
 4    
Statistical distribution of refractivity gradients
 5    
Surface and elevated ducts