Johnson JD, Mehus JG, Tews K, Milavetz BI, Lambeth DO (October 1998). "Genetic evidence for the expression of ATP- and GTP-specific succinyl-CoA synthetases in multicellular eucaryotes". The Journal of Biological Chemistry. 273 (42): 27580–6. doi:10.1074/jbc.273.42.27580. PMID9765291.