Rotational periods of T Tauri stars in Taurus-Auriga, south of Taurus-Auriga, and in MBM12 C. Broeg, V. Joergens, M. Fernández, D. Husar, T. Hearty, M. Ammler and R. Neuhäuser A&A, 450 3 (2006) 1135-1148 Published online: 19 April 2006 DOI: 10.1051/0004-6361:20053777