Investigation of induced fission of natPb by accelerated 7Li ions N. A. Demekhina, G. S. Karapetyan and V. Guimarães Eur. Phys. J. Plus, 128 3 (2013) 28 Published online: 07 March 2013 DOI: 10.1140/epjp/i2013-13028-x