Rapisarda, Paolo; Fanella, Fabiana; Maccarone, Emanuele (2 May 2000). “Reliability of Analytical Methods for Determining Anthocyanins in Blood Orange Juices”. Journal of Agricultural and Food Chemistry48 (6): 2249-2252. doi:10.1021/jf991157h.
Nicolosi, E.; Deng, Z. N.; Gentile, A.; La Malfa, S.; Continella, G.; Tribulato, E. (2000). “Citrus phylogeny and genetic origin of important species as investigated by molecular markers”. TAG Theoretical and Applied Genetics100: 1155. doi:10.1007/s001220051419.