Rosell , M., M.-L. Hellénius, U. de Faire, L. Berglund, I.-B. Gustafsson, and G. Johansson. “Contribution of a Manually Coded Part in an Optically Readable, Precoded Sevenday Food Record for the Intake of Energy, Nutrients and Foods”. Food & Nutrition Research, Sept. 2003, pp. 123-31, doi:10.3402/fnr.v47i3.1481.