1. PLASMA AND CYCLOTRON SPIKE PHENOMENA OBSERVED IN TOP-SIDE IONOGRAMS
2. Spectral Characteristics of Type II Solar Radio Bursts
3. T. H. Stix,The Theory of Plasma Waves(McGraw-Hill Book Company, Inc., New York, 1962).
4. G. N. Watson,A Treatise on the Theory of Bessel Functions(Cambridge University Press, New York, 1922).
5. F. W. Crawford, G. S. Kino, and H. H. Weiss, Stanford University, Microwave Laboratory Report 1168 (1964).