Report/Guide

Knee, P C; Deadman, A J (1998) Intercomparison of near infrared diffuse reflectance measurements. NPL Report. COEM 6

Verrill, J F; Hanson, A; Knee, P C (1997) Study of improved methods for absolute colorimetry. Fourth report: investigation of colorimetric errors. NPL Report. COEM 3

Verrill, J F; Knee, P C; Hanson, A (1997) Study of improved methods for absolute colorimetry. Third report, recommendations. NPL Report. QM 130

Verrill, J F; Clarke, P J; O'Halloran, J; Knee, P C (1995) NPL Spectrophotometry and Colorimetry club. Intercomparison of colour measurements. NPL Report. QU 113

Article

Knee, P C (1999) Investigation of the uniformity and ageing of integrating spheres. Anal. Chim. Acta, 380. pp. 391-399.

Verrill, J F; Knee, P C; O'Halloran, J (1995) A study of the uniformity and thermochromism of surface colour standards. Commission Internationale de L'eclairage Cie X, 119. pp. 95-96.

Conference or Workshop Item

Taylor, J A F; Clarke, P J; Hanson, A R; Knee, P C; Verrill, J F (1994) An investigation into the human visual system in the mesopic region using both a classical optical instrument and a visual display unit. In: Symposium on Advances in Photometry, December 1994, Vienna, Austria.