Toward inertial sensing with a 23S positronium beamSebastiano Mariazzi, Ruggero Caravita, Michael Doser, Giancarlo Nebbia and Roberto S. BrusaEur. Phys. J. D, 74 4 (2020) 79DOI: https://doi.org/10.1140/epjd/e2020-100585-8