edited by Otto-G. Richter and Kirk Borne

Astronomical Society of the Pacific c1995 Astronomical Society of the Pacific conference series v. 70 , A series of books on recent developments in astronomy and astrophysics v. 70

Available at 10 libraries

edited by O.-G. Richter and B. Binggeli

European Southern Observatory 1985 ESO conference and workshop proceedings no. 20

Available at 4 libraries