One-sided jet at milliarcsecond scales in LS I +61°303 M. Massi, M. Ribó, J. M. Paredes, M. Peracaula and R. Estalella A&A, 376 1 (2001) 217-223 Published online: 15 September 2001 DOI: 10.1051/0004-6361:20010953