July 2021
Elena Amato, Andrei Beloborodov, Frank Jenko, Anatoly Spitkovsky
November 2021
Martino Romaniello, Luca Amendola, Stefano Borgani, Stefan Hofmann, Jochen Weller
December 2021
Dmitry Budker, Peter Fierlinger, Anson Hook, Gilad Perez, Marianna Safronova, Vladan Vuletic