Study of FK Comae Berenices - V. Spot evolution and detection of surface differential rotationH. Korhonen, S. V. Berdyugina, T. Hackman, I. V. Ilyin, K. G. Strassmeier and I. TuominenA&A, 476 2 (2007) 881-891DOI: https://doi.org/10.1051/0004-6361:20041806