A LOFAR study of non-merging massive galaxy clusters F. Savini, A. Bonafede, M. Brüggen, D. Rafferty, T. Shimwell, A. Botteon, G. Brunetti, H. Intema, A. Wilber, R. Cassano et al. (8 more) A&A, 622 (2019) A24 Published online: 19 February 2019 DOI: 10.1051/0004-6361/201833882