RECOMMENDATION ITU-R F.1096 - METHODS OF CALCULATING LINE-OF-SIGHT INTERFERENCE INTO RADIO-RELAY SYSTEMS TO ACCOUNT FOR TERRA
ANNEX 1 - Interference to radio-relay systems caused by terrain scattering
1. Introduction
2. Mathematical model of terrain scatter
    2.1 Application of the model
3. Integration procedures
    3.1 Direct evaluation
    3.2 Bounding techniques
4. Shadowing
    4.1 Macro-shadowing
    4.2 Micro-shadowing
ANNEX 2 - Calculation of the area of a quadrilateral on the unit sphere
ANNEX 3 - Alternative method of calculating effective area and micro-shadowing