Tearing and Kelvin-Helmholtz instabilities in the heliospheric plasma L. Bettarini, S. Landi, F. A. Rappazzo, M. Velli and M. Opher A&A, 452 1 (2006) 321-330 Published online: 17 May 2006 DOI: 10.1051/0004-6361:20054285