Heald, G., Pizzo, R., Orrú, E., Breton, R., Carbone, D., Ferrari, C., Hardcastle, M., Jurusik, W., Macario, G., Mulcahy, D., Rafferty, D., Asgekar, A., Brentjens, M., Fallows, R., Frieswijk, W., Toribio, M., Adebahr, B., Arts, M., Bell, M., Bonafede, A., …Zarka, P. (2015). The LOFAR Multifrequency Snapshot Sky Survey (MSSS). Astronomy & Astrophysics, 582, https://doi.org/10.1051/0004-6361/201425210