The spotted star XY UMa Mitt. Astron. Ges. 43, (1978) On the membership of the RRS-star V65 and the EA-binary V78 in Omega Centauri (NGC 5139) (gemeinsam mit N. Vogt) Astron. & Astrophys. 67, 297 (1978) Morphological studies of the Large Magellanic Cloud on ESO Schmidt plates ESO Messenger 12, 7 (1978) BO And, a large amplitude eclipsing binary (gemeinsam mit A. Hänel) Inf. Bull. Var. Stars No. 1405 (1978) Slitless star spectrography by a focal reducer (gemeinsam mit B. Nelles) Mitt. Astron. Ges. 45, (1978) Photoelectric photometry of Saturn by the Rakosch area scanner technique (gemeinsam mit W. Radecke) Mitt. Astron. Ges. 45, (1978) Astronomical applications of the AGFA contourfilm technique Proc. ESO Workshop on Modern Techniques in Astronomical Photography, Geneva, (1978) Slitless spectroscopy of stars with grating-prism and focal reducer techniques Proc. IAU Colloquium 47, Vatican City, 1978 A compariscon of the star density distribution of "red" and "blue" globular clusters of the Large Magellanic Cloud (gemeinsam mit U. Hopp, M. Kiehl und S. Witzigmann) Astron. & Astrophys. 77, 61 (1979) Zum Vergleich von Sterndichteverläufen in "blauen" und "roten" Kugelsternhaufen der Großen Magellan'schen Wolke (gemeinsam mit U. Hopp. M. Kiehl und S. Witzigmann) Mitt. Astron. Ges. 45, 86, 1979 Ein einfaches Verfahren zur Bestimmung der Reflektivität von Cassegrain Teleskopen Mitt. Astron. Ges. 45, 186 (1979) On the use of a focal reducer system for slitless field spectroscopy (gemeinsam mit M. Hoffmann und B. Nelles) Astron & Astrophys. 80, 248 (1979) Star density distribution in young and old globular clusters of the Magellanic Clouds ESA-ESO-Proc. Workshop on Astronomcal Uses of the Space Telescope, p. 207, Genf 1979 Observational evidence for large scale spot activity on the primary component of XY Ursae Majoris Proc. IAU Symposium 88, 341, Toronto, 1980 Solar rotation and activity in the past and its possible influence upon life The Moon and the Planets 24, 399, 1981 Star counts in spherical emission regions of the LMC Proc. IAU XVII General Assembly, Comm. 28 - MC-Working Group, 1980 LMC loop nebulae and their stellar contents (gemeinsam mit U. Hopp) Astrophys. & Space Sci. 60, 59 (1980) Star density distribution in globular clusters of different age groups of the LMC Proc. IAU Symposium 85, 341, Victoria, 1980 Observations of H-II emission regions with a Fabry-Perot field spectrograph (gemeinsam mit A. Hänel) Mitt. Astron. Ges. 50, 101 (1980)