Neugebauer, M., Newburn, R. L., & Rahe, J. (1991). Comets in the Post-Halley Era: [E-Book] : In Part Based on Reviews Presented at the 121st Colloquium of the International Astronomical Union, Held in Bamberg, Germany, April 24–28, 1989 / edited by R. L. Newburn, M. Neugebauer, J. Rahe. Dordrecht: Springer.

Neugebauer, M., R. L. Newburn, andfavorite J. Rahe. Comets in the Post-Halley Era: [E-Book] : In Part Based On Reviews Presented At the 121st Colloquium of the International Astronomical Union, Held in Bamberg, Germany, April 24–28, 1989 / Edited By R. L. Newburn, M. Neugebauer, J. Rahe. Dordrecht: Springer, 1991.

Neugebauer, M., R. L. Newburn, andfavorite J. Rahe. Comets in the Post-Halley Era: [E-Book] : In Part Based On Reviews Presented At the 121st Colloquium of the International Astronomical Union, Held in Bamberg, Germany, April 24–28, 1989 / Edited By R. L. Newburn, M. Neugebauer, J. Rahe. Dordrecht: Springer, 1991.