B. Knoche, G. Blascke. Investigations on the in vitro racemization of thalidomide by high-performance liquid chromatography. „Journal of Chromatography A”. 666 (1-2). s. 235-240. DOI: 10.1016/0021-9673(94)80385-4. Bibcode: 2006JChEd..83.1793W. (ang.).
B. Knoche, G. Blascke. Investigations on the in vitro racemization of thalidomide by high-performance liquid chromatography. „Journal of Chromatography A”. 666 (1-2). s. 235-240. DOI: 10.1016/0021-9673(94)80385-4. Bibcode: 2006JChEd..83.1793W. (ang.).