On the calibration of full-polarization 86 GHz global VLBI observations I. Martí-Vidal, T. P. Krichbaum, A. Marscher, W. Alef, A. Bertarini, U. Bach, F. K. Schinzel, H. Rottmann, J. M. Anderson, J. A. Zensus et al. (4 more) A&A, 542 (2012) A107 Published online: 14 June 2012 DOI: 10.1051/0004-6361/201218958