L. G. Coppel, M. Neuman and P. Edström, " Extension of the Stokes equation for layered constructions to ﬂuorescent turbid media", accepted for publication in J. Opt. Soc. Am. A.
L. G. Coppel, M. Andersson, P. Edström, and J. Kinnunen, "Limitations of the efficiency of fluorescent whitening agents in uncoated paper", Nordic Pulp and Paper Research Journal, 26(3), 319-328 (2011).
L. G. Coppel, M. Andersson, and P. Edström, "Determination of quantum efficiency in fluorescing turbid media," Applied Optics, 50(17), 2784-2792 (2011).
L. G. Coppel, Whiteness and fluorescence in paper – Perception and optical modelling, Licentiate Thesis nr. 47, Mid Sweden University, Sweden.
L. Yang and Roger D. Hersch, "Extending the Kubelka-Munk model to a non-diffuse light distribution", J. Imaging Science and Technology, vol. 52, pp. 030201-7 (2008).