MOJAVE: Monitoring of Jets in Active galactic nuclei with VLBA Experiments - IX. Nuclear opacityA. B. Pushkarev, T. Hovatta, Y. Y. Kovalev, M. L. Lister, A. P. Lobanov, T. Savolainen and J. A. ZensusA&A, 545 (2012) A113DOI: https://doi.org/10.1051/0004-6361/201219173
