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H. M. Epps: Studies on bacterial amino-acid decarboxylases: 4. l(-)-histidine decarboxylase from Cl. welchii Type A. In: The Biochemical Journal. Band39, Nr.1, 1945, ISSN0264-6021, S.42–46, PMID 16747851, PMC 1258146 (freier Volltext).
E. Sandmeier, T. I. Hale, P. Christen: Multiple evolutionary origin of pyridoxal-5'-phosphate-dependent amino acid decarboxylases. In: European Journal of Biochemistry. Band221, Nr.3, 1. Mai 1994, ISSN0014-2956, S.997–1002, PMID 8181483.