Author in the following contributions
- Depth of maximum of air-shower profiles: testing the compatibility of the measurements at the Pierre Auger Observatory and the Telescope Array
- Mass composition of ultra-high-energy cosmic rays at the Pierre Auger Observatory
- AugerPrime: Expectations and first results
- Investigations of CORSIKA Thinning Levels Suitable for Studies of Photon-Hadron Discrimination at Ultra-High Energies