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LibreCat: https://research-explorer.ista.ac.at/record/7791
DOI: 10.1007/s40879-020-00405-0
arXiv: 1912.12685

Weighill T, Yamauchi T, Zava N. Coarse infinite-dimensionality of hyperspaces of finite subsets. European Journal of Mathematics. 2021. doi:10.1007/s40879-021-00515-3
LibreCat: https://research-explorer.ista.ac.at/record/10608
DOI: 10.1007/s40879-021-00515-3

Akopyan A, Schwartz R, Tabachnikov S. Billiards in ellipses revisited. European Journal of Mathematics. 2020. doi:10.1007/s40879-020-00426-9
LibreCat: https://research-explorer.ista.ac.at/record/8538
DOI: 10.1007/s40879-020-00426-9
arXiv: 2001.02934

Kalinin N, Shkolnikov M. Tropical formulae for summation over a part of SL(2,Z). European Journal of Mathematics. 2019;5(3):909–928. doi:10.1007/s40879-018-0218-0
LibreCat: https://research-explorer.ista.ac.at/record/441
DOI: 10.1007/s40879-018-0218-0
arXiv: 1711.02089