Bialy, Misha, Corentin Fiorebe, Alexey Glutsyuk, Mark Levi, Alexander Plakhov, and Serge Tabachnikov. “Open Problems on Billiards and Geometric Optics.”https://doi.org/10.1007/s40598-022-00198-y__Arnold Mathematical Journal. Springer Nature, 2022.https://doi.org/10.1007/s40598-022-00198-y .
LibreCat: https://research-explorer.ista.ac.at/record/10706
DOI: 10.1007/s40598-022-00198-y
arXiv: 2110.10750