McEvoy, H; Martin, M J; Steiner, A; Schreiber, E; Girard, F; Battuello, M; Sadli, M; Ridoux, P; Gutschwager, B; Hollandt, J; Diril, A; Pehlivan, Ö (2018) Report on the measurement results for the EURAMET 658 extension: project to examine underlying parameters in radiance scale realisation. Metrologia, 55 (1A). 03001 ISSN 0026-1394