Antisolar differential rotation of the K1-giant σ Geminorum revisited Zs. Kővári, L. Kriskovics, A. Künstler, T. A. Carroll, K. G. Strassmeier, K. Vida, K. Oláh, J. Bartus and M. Weber A&A, 573 (2015) A98 Published online: 06 January 2015 DOI: 10.1051/0004-6361/201424138