Maintainance as well as further developments of WEBDA, the most comprehensive database dedicated to open clusters, which was cited by about 400 publications within the last five years.

Investigation of open clusters via broadband and a photometry to determine their fundamental parameters like age, distance and interstellar reddening to improve the number of open clusters observed.

Photometric and spectroscopic investigation of chemically peculiar stars within galactic and extragalactic environments as well as theoretical and statistical studies about their incidence and evolution.