1. CEE rule nr. 2081/92, Europe Council of 14/07/1992—related to the Protected Geographical Indication (PGI) and Protected Designation of Origin (PDO) of Agricultural Products (Gazzetta Ufficiale Italiana L208 24/07/1992).
2. Review of apple flavour — State of the art;Dimick;CRC Critical Review of Food and Science Nutrition,1983
3. Mutazioni indotte nelle varietà di melo Annurca;Fideghelli;Rivista Ortoflorofrutticoltura Italiana,1977
4. Identification and organoleptic evaluation of compounds in Delicious apple essence;Flath;Journal of Agriculture and Food Chemistry,1967
5. Floris, M. (1997) Melo e Pero nella Frutticoltura Italiana ed Europea, ed Federchimica Agrofarma, Milano, Italy, p 17.