Contour length fluctuations in polymer melts: A direct molecular proof M. Zamponi, M. Monkenbusch, L. Willner, A. Wischnewski, B. Farago and D. Richter Europhys. Lett., 72 6 (2005) 1039-1044 Published online: 18 November 2005 DOI: 10.1209/epl/i2005-10338-1