TY - BOOK AU - Budden,K.C TI - Radio waves in the ionosphere: the mathematical theory of the refelection of radio waves from stratified inonised layers U1 - 621.38411 PY - 1961/// CY - Cambridge PB - At the University Press KW - Radio waves KW - Radio KW - Transmitters and transmission KW - Microwaves KW - Radio wave propagation N1 - Includes index ER -