1. Commission of the European Communities Nutrient and Energy Intakes for the European Community 1993 www.worldcat.org/title/reports-of-the-scientific-committee-for-food-nutrient-and-energy-intakes-for-the-european-community/oclc/614442395?referer=di&ht=edition
2. Effect of feeding polyunsaturated fatty acids with low vitamin E diet on blood levels of tocopheral in men performing hard physical labor;Bunnell;Am J Clin Nutr,1975
3. Scientific Committee on Food, Scientific Panel on Dietetic Products, Nutrition and Allergies. European Food Safety Authority Tolerable Upper Intake Levels for Vitamins and Minerals 2006 www.efsa.europa.eu/sites/default/files/efsa_rep/blobserver_assets/ndatolerableuil.pdf
4. Vitamin D: do we get enough? A discussion between vitamin D experts in order to make a step towards the harmonisation of dietary reference intakes for vitamin D across Europe;Brouwer-Brolsma;Osteoporosis Int,2013