Siebert, M., Severin, K. and Heide, L. (1994). „Formation of 4-hydroxybenzoate in Escherichia coli: characterization of the ubiC gene and its encoded enzyme chorismate pyruvate-lyase”. Microbiology140: 897-904. PMID8012607.
Meganathan, R. (2001). „Ubiquinone biosynthesis in microorganisms”. FEMS Microbiol. Lett.203: 131-139. PMID11583838.