1. New IAGA structure;Alldredge;IAGA News,1973
2. E. R., Dyer, , STP Notes, 1-24 Spec. Comm. on Solar-Terr. Phys. (SCOSTEP), Washington, D. C., 1968,
3. E. R., Dyer, , STP Notes, iii-v Spec. Comm. on Solar-Terr. Phys. (SCOSTEP), Washington, D. C., 1973,
4. Communication modes of geophysics: The case of ionospheric physics;Gillmor;Eos Trans. AGU,1973
5. Research with the space shuttle;Naugle;Phys. Today,1973