Interacting coronae of two T Tauri stars: first observational evidence for solar-like helmet streamersM. Massi, E. Ros, K. M. Menten, M. Kaufman Bernadó, G. Torricelli-Ciamponi, J. Neidhöfer, A. Boden, D. Boboltz, A. Sargent and G. TorresA&A, 480 2 (2008) 489-494DOI: https://doi.org/10.1051/0004-6361:20078637