Stocker, Achim; Fretz, Heinz; Frick, Haroun; Rüttimann, August; Woggon, Wolf-Dietrich (1996). The substrate specificity of tocopherol cyclase. Bioorganic & medicinal chemistry, 4(7), pp. 1129-1134. Elsevier 10.1016/0968-0896(96)00125-3
