A VLBA survey of the core shift effect in AGN jets - I. Evidence of dominating synchrotron opacityK. V. Sokolovsky, Y. Y. Kovalev, A. B. Pushkarev and A. P. LobanovA&A, 532 (2011) A38DOI: https://doi.org/10.1051/0004-6361/201016072
