De Keyzer, W., I. Huybrechts, V. De Vriendt, S. Vandevijvere, N. Slimani, H. Van Oyen, and S. De Henauw. “Repeated 24-Hour Recalls Versus Dietary Records for Estimating Nutrient Intakes in a National Food Consumption Survey”. Food & Nutrition Research, Nov. 2011, https://foodandnutritionresearch.net/index.php/fnr/article/view/576.