%0 Journal Article %A Rosario Antonio Leo %A Gabriele Sicuro %A Piergiulio Tempesta %T A theorem on the existence of symmetries of fractional PDEs %J Comptes Rendus. Mathématique %D 2014 %P 219-222 %V 352 %N 3 %I Elsevier %R 10.1016/j.crma.2013.11.007 %G en %F CRMATH_2014__352_3_219_0