- Geometry of deformed black holes. II. Schwarzschild hole surrounded by a Bach-Weyl ring2016 | Faculty of Mathematics and Physics
- Static axisymmetric rings in general relativity: How diverse they are2016 | Faculty of Mathematics and Physics
- Schwarzschild binary supported by an Appell ring2019 | Faculty of Mathematics and Physics
- Free motion around black holes with discs or rings: between integrability and chaos-V2019 | Faculty of Mathematics and Physics
- Free motion around black holes with discs or rings: between integrability and chaos - IV2015 | Faculty of Mathematics and Physics
