GCM analysis of the collective properties of lead isotopes with exact projection on particle numbers P.-H. Heenen, A. Valor, M. Bender, P. Bonche and H. Flocard Eur. Phys. J. A, 11 4 (2001) 393-402 Published online: 15 August 2001 DOI: 10.1007/s100500170051