Electron capture and loss by protonated peptides and proteins in collisions with C60 and Na P. Hvelplund, B. Liu, S. B. Nielsen, S. Tomita, H. Cederquist, J. Jensen, H. T. Schmidt and H. Zettergren Eur. Phys. J. D, 22 1 (2003) 75-79 Published online: 06 November 2002 DOI: 10.1140/epjd/e2002-00220-2