RSC Advances, 3-12:4086 – 4092, 2013 doi:10.1039/c3ra23304a
Bayer Bernhard C., Castellarin-Cudia Carla, Blume Raoul, Steiner Stephen A., Ducati Caterina, Chu Daping, Goldoni Andrea, Knop-Gericke Axel, Schlögl Robert, Cepek Cinzia, Robertson John, Hofmann Stephan