Vander Vorst, A. (1979). A survey of atmospheric propagation research experiments on slant paths in the band 15-40 GHz. In Spitz, E.; (ed.), AGARD Conference Proceedings No.245. Millimeter and Submillimeter WavePropagation and Circuits (p. p. 41/1-4117). Agard. https://hdl.handle.net/2078.5/223055