Absolute kinematics of radio source components in the complete S5 polar cap sample - II. First and second epoch maps at 15 GHzM. A. Pérez-Torres, J. M. Marcaide, J. C. Guirado and E. RosA&A, 428 3 (2004) 847-866DOI: https://doi.org/10.1051/0004-6361:20040423