Revived fossil plasma sources in galaxy clusters S. Mandal, H. T. Intema, R. J. van Weeren, T. W. Shimwell, A. Botteon, G. Brunetti, F. de Gasperin, M. Brüggen, G. Di Gennaro, R. Kraft et al. (3 more) A&A, 634 (2020) A4 Published online: 28 January 2020 DOI: 10.1051/0004-6361/201936560