Cardinali, Tiziana, Francesco Portigiani, and Paola Rubbioni. 2008. “Local Mild Solutions and Impulsive Mild Solutions for Semilinear Cauchy Problems Involving Lower Scorza-Dragoni Multifunctions”. Topological Methods in Nonlinear Analysis 32 (2):247-59. https://apcz.umk.pl/TMNA/article/view/TMNA.2008.048.