1. Bash, F.: 1986, “The present, past and future velocity of nearby stars: The path of the sun in 108 years”, in The Galaxy and the Solar System, eds., Smoluchowski, R., Bahcall, J.N. III, and Shapley, M.M., University of Arizona Press, Tucson, AZ, 483 pp.
2. Lecture Notes in Physics;D. Breitschwerdt,1998
3. Clube, S.V.M. and Napier, W.M.: 1984, “Comet capture from molecular clouds: A dynamical constraint on star and planet formation”, Mon. Not. Royal Astron. Soc.
208, 575–588.
4. Dyson, J.E. and Williams, D.A.: 1997, The Physics of the Interstellar Medium, Institute of Physics, UK, 155pp.
5. Egger, R.J., Freyberg, M.J. and Morfill, G.E.: 1996, “The local interstellar medium”, Space Sci. Rev.
75, 511–536.