Göransson, A. “Irritation and Staining by Dithranol (anthralin) and Butantrone (10-Butyryl dithranol): Further Short Contact and Tape Stripping Experiments”. Acta Dermato-Venereologica, vol. 67, no. 1, Jan. 1987, pp. 72-76, doi:10.2340/00015555677276.