Siebert M, Severin K, Heide L (April 1994). “Formation of 4-hydroxybenzoate in Escherichia coli: characterization of the ubiC gene and its encoded enzyme chorismate pyruvate-lyase”. Microbiology (Reading, Engl.)140 (4): 897–904. doi:10.1099/00221287-140-4-897. PMID8012607.
Siebert M, Severin K, Heide L (April 1994). “Formation of 4-hydroxybenzoate in Escherichia coli: characterization of the ubiC gene and its encoded enzyme chorismate pyruvate-lyase”. Microbiology (Reading, Engl.)140 (4): 897–904. doi:10.1099/00221287-140-4-897. PMID8012607.