Kaufman, S. (1955). „Studies on the mechanism of the reaction catalyzed by the phosphorylating enzyme”. J. Biol. Chem. 216: 153—164. PMID13252015.
Kaufman, S. & Alivasatos, S.G.A. (1955). „Purification and properties of the phosphorylating enzyme from spinach”. J. Biol. Chem. 216: 141—152. PMID13252014.