00654nam a2200193Ia 4500003000900000008004100009020001800050040001600068080001900084100002100103245010400124250001200228260003900240300001000279500008700289650004100376650001500417700002800432IN-BaIIA211028s9999    xx            000 0 eng d  a0-306-17141-4  cIIA Library  a551.510.5bALP  aAl'pert, Yakov L 0aRadio wave propagation and the ionospherebvol. 2cYakov L. Apert; translated by Richard B. Rodman.  a2nd ed.  aNew YorkbConsultants Bureauc1973  a430p.  aTranslation of 'Rasprostranenie ėlektromagnitnykh voln i ionosfera' from Russian  aAstronomy and Astrophysics Thesaurus  aIonosphere  aRodman, Richard B., tr.