Jacobson, J.B. and Kaplan, N.O. (1957). „A reduced pyridine nucleotide pyrophosphatase”. J. Biol. Chem.226: 427-437. PMID13428775.
Kumar, S.A., Rao, N.A. and Vaidyanathan, C.S. (1965). „Nucleotidases in plants. I. Partial purification and properties of the enzyme hydrolyzing flavine adenine dinucleotide from mung bean seedlings (Phaseolus radiatus)”. Arch. Biochem. Biophys.111: 646-652. PMID5862212.