Van Delden, RA; ter Wiel, MKJ; Pollard, MM; Vicario, J; Koumura, N; Feringa, BL. "Unidirectional molecular motor on a gold surface". Nature2005 (437): 1337–1340. doi:10.1038/nature04127.
Eelkema, JJR; Pollard, MM; Vicario, J; Katsonis, N; Serrano Ramon, B; Bastiaansen, CWM; Broer, DJ; Feringa, BL (2006). "Rotation of a microscopic object by a light-driven molecular motor". Nature440 (7081): 163. doi:10.1038/440163a.