Core-shifts and proper-motion constraints in the S5 polar cap sample at the 15 and 43 GHz bandsF. J. Abellán, I. Martí-Vidal, J. M. Marcaide and J. C. GuiradoA&A, 614 (2018) A74DOI: https://doi.org/10.1051/0004-6361/201731869
