Authors: Rainer Kaltenbaek; Antonio Acin; Laszlo Bacsardi; Paolo Bianco; Philippe Bouyer; Eleni Diamanti; Christoph Marquardt; Yasser Omar; Valerio Pruneri; Ernst Rasel; Bernhard Sang; Stephan Seidel; Hendrik Ulbricht; Rupert Ursin; Paolo Villoresi; Mathias van den Bossche; Wolf von Klitzing; Hugo Zbinden; Mauro Paternostro; Angelo Bassi Journal: Exp Astron (Dordr) Date: 2021-06-25 Impact factor: 2.012