Traceable Radiometry Underpinning Terrestrial- and Helio-Studies (truths) - Fox, N; Aiken, J; Barnett, JJ; Briottet, X; Carvell, R; Frohlich, C; Groom, SB; Hagolle, O; Haigh, JD; Kieffer, HH; Lean, J; Pollock, DB; et al. (2003)