- Completeness of general pp-wave spacetimes and their impulsive limit2016 | Faculty of Mathematics and Physics
- Gyratonic pp waves and their impulsive limit2014 | Faculty of Mathematics and Physics
- Chaos in pp-wave spacetimes and its smearing in the impulsive limit2000 | Faculty of Mathematics and Physics
- New examples of sandwich gravitational waves and their impulsive limit1998 | Faculty of Mathematics and Physics, Central Library of Charles University