Shimwell, T.W., Röttgering, H.J.A., Morganti, R., Edge, A.C., Cuciti, V., Brunetti, G., Botteon, A., Brüggen, M., Rafferty, D.A., Bîrzan, L., "LOFAR observations of X-ray cavity systems", Monthly Notices of the Royal Astronomical Society, 2020