Title: Planetary nebulae : proceedings of the 155 Symposium of the International Astronomical Union, held in Innsbruck, Austria, July 13-17, 1992 /
Authors: Weinberger, R.; Acker, Agnès.; International Astronomical Union. 1992 :
Publisher: Kluwer Academic,
Year: 1993
Subjects: Planetary nebulae Congresses.