The traveling-wave tube in the history of telecommunicationDamien F.G. Minenna, Frédéric André, Yves Elskens, Jean-François Auboin, Fabrice Doveil, Jérôme Puech and Élise DuverdierEur. Phys. J. H, 44 1 (2019) 1-36DOI: https://doi.org/10.1140/epjh/e2018-90023-1