10

Molecular machines. (B. H. Northrop, A. B. Braunschweig, P. M. Mendes, W. R. Dichtel, J. F. Stoddart),Handbook of Nanoscience Engineering and Technology, Second Edition, W.A. Goddard III, D.W. Brenner, S.E. Lyshevski, G.J. Iafrate (Eds.), CRC Press 20072, 11-(1-48).