Martí-Vidal I., Marcaide J.M, Alberdi A., Pérez-Torres M.A, Ros E., Guirado J.C.  2011.  Detection of jet precession in the active nucleus of M 81. Astronomy and Astrophysics. 533:A111.

Martí-Vidal I., Marcaide J.M, Alberdi A., Guirado J.C, Pérez-Torres M.A, Ros E..  2011.  Radio emission of SN1993J: the complete picture. I. Re-analysis of all the available VLBI data. Astronomy and Astrophysics. 526:A142.

Martí-Vidal I., Marcaide J.M, Alberdi A., Guirado J.C, Pérez-Torres M.A, Ros E..  2011.  Radio emission of SN1993J: the complete picture. II. Simultaneous fit of expansion and radio light curves. Astronomy and Astrophysics. 526:A143.