1. The absorption and dissociative or ionizing effect of monochromatic radiation in an atmosphere on a rotating earth;Chapman,1931
2. The absorption and dissociative or ionizing effect of monochromatic radiation in an atmosphere on a rotating earth;Chapman,1931
3. Ionospheric Radio Propagation;NBS,1949
4. Global morphology of the E-and F1-layers of the ionosphere;Appleton;J. Atmos. Terr. Phys.,1959
5. Diurnal variation in the E-layer ionization;Kouris;J. Atmos. Terr. Phys.,1973