institutes 2022 Laszlo Jenkovszky, Bogolubov Institute for Theoretical Physics, Kiev, Ukraine 1 month in 2022 at U Heidelberg Lucas Platter, U Tennessee, Knoxville, USA 6 months within 2022 at TU Darmstadt [...] within 2022 at GSI, Germany Gerd Roepke, U Rostock, Germany 1 month between 2020 and 2022 at U Frankfurt, Germany Nasser Kalantar-Nayestanaki, U Groningen, Netherlands 6 months betwwen 2020 and 2022 at GSI [...] Hungary 6 months within 2021 and 2022 at U Frankfurt Davide Proment, School of Mathematics, University of East Anglia, U.K. 6 weeks between March and September 2022 at Kirchhoff Institute for Physics