Ordering phenomena in C60-tetraphenylphosphonium bromide P. Launois, R. Moret, N.-R. de Souza, J. A. Azamar-Barrios and A. Pénicaud Eur. Phys. J. B, 15 3 (2000) 445-450 Published online: 15 June 2000 DOI: 10.1007/s100510051145