Budden, K. G. Radio waves in the ionosphere : the mathematica theory of the reflection of radio waves from stratified ionised layers. - Cambridge [England] : University Press, 1966. First published in 1961. Includes bibliographical references. Subjects--Topical Terms: Ionospheric radio wave propagation. LC Class. No.: QC973 / .B8 1966 Dewey Class. No.: 621.38411