Into the central 10 pc of the most distant known radio quasar - VLBI imaging observations of J1429+5447 at z = 6.21S. Frey, Z. Paragi, L. I. Gurvits, K. É. Gabányi and D. CsehA&A, 531 (2011) L5DOI: https://doi.org/10.1051/0004-6361/201117341
