1. The Depolarisation of Electromagnetic Waves scattered from Rough Surfaces;Beckmann,1963
2. Scattering by Composite Rough Surfaces;Beckmann;Proc. IEEE,1965
3. Shadowing of Random Rough Surfaces;Beckmann;IEEE Trans. on Ant. and Prop.,1965
4. Probability in Communication Engineering;Beckmann,1967
5. The Scattering of Electromagnetic Waves from Rough Surfaces;Beckmann,1963