1. Planetary fast neutral emission and effects on the solar wind;Barbosa;Ap. J.,1986
2. Local interstellar oxygen in the heliosphere;Fahr;Astronom. Astrophys,1991
3. Interstellar oxygen, nitrogen and neon in the heliosphere;Geiss;Astronom. Astrophys.,1994
4. Origin of the O+ pick-up ions in the heliosphere;Geiss;Astronom. Astrophys.,1994
5. C+ pickup ions in the heliosphere and their origin;Geiss;J. Geophys. Res.,1995