Bialy M, Fiorebe C, Glutsyuk A, Levi M, Plakhov A, Tabachnikov S. 2022. Open problems on billiards and geometric optics. Arnold Mathematical Journal. 8, 411–422.
LibreCat: https://research-explorer.ista.ac.at/record/10706
DOI: 10.1007/s40598-022-00198-y
arXiv: 2110.10750