Cristina Freitas, F. Xavier Malcata: Microbiology and Biochemistry of Cheeses with Appélation d’Origine Protegée and Manufactured in the Iberian Peninsula from Ovine and Caprine Milks. In: Journal of Dairy Science. Band83, Nr.3, 2000, S.584–602, doi:10.3168/jds.S0022-0302(00)74918-6 (englisch).
A. C. Freitas, A. C. Macedo, F. X. Malcata: Technological and organoleptic issues pertaining to cheeses with denomination of origin manufactured in the Iberian Peninsula from ovine and caprine milks. In: Food Science and Technology International. Band6, Nr.5, 2000, S.351–370, doi:10.1177/108201320000600502 (englisch).