The shell closure in neutron-deficient Pb isotopes M. Bender, T. Cornelius, G.A. Lalazissis, J.A. Maruhn, W. Nazarewicz and P.-G. ReinhardEur. Phys. J. A, 14 1 (2002) 23-28DOI: https://doi.org/10.1140/epja/iepja1320