Doppler imaging of stellar surface structure - XVI. A time-series analysis of the moderately-rotating K1-giant σ GeminorumZs. Kővári, K. G. Strassmeier, J. Bartus, A. Washuettl, M. Weber and J. B. RiceA&A, 373 1 (2001) 199-210DOI: https://doi.org/10.1051/0004-6361:20010594
