[1]. J. Anderson and L. Young, Food and Nutrition series, Colorado State University, Fact Sheet No 9.315 (2008). http://www.ext.colostate. edu/pubs/foodnut/09315.pdf
[7]. *** Danish Food Composition Databank, Department of Nutrition, National Food Institute (2009) http://www.foodcomp. dk/v7/fcdb_details.asp?FoodId=0082
[8]. ***Danish Food Composition Databank, Department of Nutrition, National Food Institute (2009) http://www.foodcomp. dk/v7/fcdb_details.asp?FoodId=0211
[9]. ***Ordinance _ 23 / 19.07.2005 on the physiological feeding of population http://bg.wikipedia.org/wiki/Физиологични_норми_за_хранене#cite_note-echo-9