1. Bundeslebensmittelschlüssel – Federal foodstuffs database (Germany);BLS,2009
2. Centre informatique sur la QUalité des aliments;CIQUAL,2008
3. Danish Food Composition Databank, Version 7.01;Danish Institute for Food and Veterinary Research,2009
4. McCance and Widdowson’s The Composition of Foods;Agency,2002