de Gasperin, F., Dijkema, T., Drabent, A., Mevius, M., Rafferty, D., van Weeren, R., Brüggen, M., Callingham, J., Emig, K., Heald, G., Intema, H., Morabito, L., Offringa, A., Oonk, R., Orrù, E., Röttgering, H., Sabater, J., Shimwell, T., Shulevski, A., & Williams, W. (2019). Systematic effects in LOFAR data: A unified calibration strategy. Astronomy & Astrophysics, 622, https://doi.org/10.1051/0004-6361/201833867