S. Frixel

Characterization of E. coli MG1655 and frdA and sdhC mutants at various aerobiosis levels.

K. Bettenbrock, S. Stagge, S. Steinsiek, 2011, Journal of biotechnology.

Carotenylflavonoids, a novel group of potent, dual-functional antioxidants

W. Stahl, H. Ernst, T. Hoffmann, 2007 .

3,3'-Dihydroxyisorenieratene, a natural carotenoid with superior antioxidant and photoprotective properties.

W. Stahl, H. Ernst, S. Frixel, 2009, Angewandte Chemie.

Quantitative assessment of antioxidant properties of natural colorants and phytochemicals: carotenoids, flavonoids, phenols and indigoids. The role of β‐carotene in antioxidant functions

Hansgeorg Ernst, Robin Walsh, W. Stahl, 2001 .