área de pesquisa
- A spectrophotometric Survey of Faint Northern Dwarf Novae
- Albert Josef Rudolf Bruch
- An Atlas and Position Catalogue of Northern Dwarf Novae
- Investigation of Statistical Parameters of the Flickering of Cataclysmic Variables
- Investigation of the Shell Structure of P Cygni through an Analysis of Various Line Profiles
- Investigations of the Wavelengths Dependence of the Flickering in Cataclysmic Variables
- KT Persei - Time Resolves Spectroscopy of a Dwarf Nova
- Long-Term Photometry od Eclipsing Variables within the LTPV-Program
- Model Calculations for the Symbiotic Star BD-21.3873
- Northern Dwarf Novae: Proper Motions, Statistical Parallaxes and Atas
- Orbital Periods and Waveforms of Dwarf Novae Observed by Kepler
- Reconstruction of the Accretion Disk of OY Carinae During Superoutburst
- Spectroscopy of CG Draconis
- Spectroscopy of the Dwarf Novae DX Andromedae
- Spectroscopy of the Four Novae BT Mon, CP Pup, RR Pic and T Pyx
- Statistical Analysis of the Flickering in CVs with Wavelet Transforms
- Statistical Investigations of the Luminosity of the Flickering in Cataclysmic Variables
- The Frequency behaviour of the Flickering in Cataclysmic Variables
- The Shot-Noise-Modell: Description and Application to the Modelling of Flickering Light Curves
- The Spectral Evolution of the Symbiotic Nova PU Vulpeculae from 1984 until 1990
- The Temporal Behviour of the 33 sec - oscillations of the Intermedidate Polar AE Aquarii
- Time Series Analysis of the Flickering in Cataclysmic Variables