Circumstellar matter : proceedings of the 122nd Symposium of the International Astronomical Union held in Heidelberg, F.R.G., June 23-27, 1986 - International Astronomical Union. Symposium 1986 : Heidelberg, Germany); Appenzeller, I. (Immo), 1940-; Jordan, C. (Dordrecht ; D. Reidel Pub. Co., 1987)
At head of title: International Astronomical Union = Union astronomique internationale.
Includes bibliographies and indexes.
Keywords: Circumstellar matter -- Congresses; Stars -- Atmospheres -- Congresses; Interstellar matter -- Congresses