Results of the ROTOR-program - I. The long-term photometric variability of classical T Tauri starsK. N. Grankin, S. Yu. Melnikov, J. Bouvier, W. Herbst and V. S. ShevchenkoA&A, 461 1 (2007) 183-195DOI: https://doi.org/10.1051/0004-6361:20065489
