Time-series Doppler imaging of the red giant HD 208472 - Active longitudes and differential rotationO. Özdarcan, T. A. Carroll, A. Künstler, K. G. Strassmeier, S. Evren, M. Weber and T. GranzerA&A, 593 (2016) A123DOI: https://doi.org/10.1051/0004-6361/201628545