REFERENCES
- Bowhill, S. A., J. Res. Nat. Bur. Stand., 65D (1961), 275.
- Briggs, B. H., J. atmos. terr. Phys., 12 (1958), 34.
- Briggs, B. H. & Parkin, I. A., J. atmos. terr. Phys., 25 (1963), 339.
- Briggs, B. H., Phillips, G. J. & Shinn, D. H., Proc. phys. Soc., 63B (1950), 106.
- Bodden, K. G., 1964, in press.
- Frihagen, J. & Troim, J., J. atmos. terr. Phys., 18 (1961), 75.
- Hook, J. L. & Owren, L., J. geophys. Res., 67 (1962), 5353.
- James, P. W., J. atmos. terr. Phys., 24 (1962), 237.
- Mercier, R. P., Proc. Camb. Phil. Soc., 58, Pt. 2, (1962), 382.
- Mitra, S. N., Proc. Instn elect. Engrs, Pt. III, 96 (1949), 441.
- Munro, G. H., J. geophys. Res., 68 (1963), 1851.
- Phillips, G. J. & Spencer, M., Proc. phys. Soc., 68B (1955), 481.
- Ratcliffe, J. A., Rep. Prog. Phys. Vol. 19 (Physical Society, London) (1956), 188.
- Singleton, D. G. & Lynch, G. J. E., J. atoms, terr. Phys., 24 (1962), 363.
- Tatarski, V. I., Wave Propagation in a Turbulent Medium (McGraw-Hill Book Co. Inc., New York), 1961.
- Wagner, L. S., J. geophys. Res., 67 (1962), 4195.