1. Lyman-α imagery of Comet Kohoutek;Carruthers;Icarus,1974
2. Carbon production in Comet West (1975n);Feldman;Astrophys. J.,1976
3. The interpretations of ultra-violet observations of comets;Keller;Space Sci. Rev.,1976
4. A cometary hydrogen model for arbitrary observational geometry;Keller;Astron. Astrophys.,1976
5. Resonance scattering from optically thin expanding cometary atmospheres;Meier;Astron. Astrophys.,1975