Commission Staff Working Document COM (2009) 591: Improving price transparency along the food supply chain for consumers and policy makers, p.15. http://ec.europa.eu/economy_finance/publications/publication16073_en.pdf
Komisjoni töödokument KOM(2009) 591: Hindade läbipaistvuse parandamine toiduainete tarneahelas tarbijate ja poliitika kujundajate kasuks, lk 15. http://ec.europa.eu/economy_finance/publications/publication16073_en.pdf