KiDS+VIKING-450: Improved cosmological parameter constraints from redshift calibration with self-organising mapsAngus H. Wright, Hendrik Hildebrandt, Jan Luca van den Busch, Catherine Heymans, Benjamin Joachimi, Arun Kannawadi and Konrad KuijkenA&A, 640 (2020) L14DOI: https://doi.org/10.1051/0004-6361/202038389