1. 1. H. W. Heldt, J. M. Tager, S. Papa, E. Quagliariello, and E. C. Slater , inRegulation of metabolic processes in mitochondria (edited by), Elsevier, Amsterdam1966 , p.51 .
2. 3. H. W. Heldt, and K. Schwalbach , Abstracts 3 FEBS Meeting (Warsaw), 1966 , M 42.
3. Nucleotide Transphosphorylases from Liver
4. Nucleoside monophosphate kinases