Astronomy and Astrophysics Abstracts, Vol. 71 Burkhardt, G. ; Esser, U. ; Hefele, H. ; Heinrich, I. ; Hofmann, W. ; Matas, V. R. ; Schmadel, L. D. ; Wielen, R. ; Zech, G. Abstract Publication: Astronomy and Astrophysics Abstracts Heidelberg Pub Date: 2000 Bibcode: 2000A&AA...71.....B