Doppler images of DI Piscium during 2004–2006 M. Lindborg, T. Hackman, M. J. Mantere, H. Korhonen, I. Ilyin, O. Kochukhov and N. Piskunov A&A, 562 (2014) A139 Published online: 21 February 2014 DOI: 10.1051/0004-6361/201322669