Strong perturbation effects in heavy ion induced electronic sputtering of lithium fluoride Hussein Hijazi, Thomas Langlinay, Hermann Rothard, Philippe Boduch, Frédéric Ropars, Amine Cassimi, Lucio S. Farenzena and Enio F. da Silveira Eur. Phys. J. D, 68 7 (2014) 185 Published online: 03 July 2014 DOI: 10.1140/epjd/e2014-40811-6