1. Auroral C-emission and interplanetary neutral hydrogen;Abbot;Geofis, Pura Appl.,1960
2. Theoretical study of cosmic noise absorption due to solar cosmic radiation;Adams;Planetary Space Sci.,1966
3. Low-energy electron and proton spectra in the auroral zone;Albert;Trans. Am. Geophys. Union,1967
4. Alfvén, H., , C.-G., Falthammar, , Cosmical Electrodynamics, 162-167 Clarendon Press, Oxford, 1963,
5. Experimental results on charge-changing collisions of hydrogen and helium atoms and ions at kinetic energies above 0.2 kev;Allison;Rev. Mod. Phys.,1958