1. On the theory of comet tails;Alfvén;Tellus,1957
2. Comet Giacobinizinner: A plasma description;Bame;Science,1958
3. The interaction of the solar wind with a comet;Biermann;Solar Physics, J,1967
4. On the penetration of the solar wind into the cometary ionosphere;Ershkovich;Astrophys. J.,1983
5. Effects of the interaction between plasma and neutrals on the stability of the cometary ionopause;Ershkovich;Astrophys. J.,1986