%0 Journal Article %A Luterotti, Fabio %T Some results on weak solutions to a class of singular hyperbolic variational inequalities %J Rendiconti del Seminario Matematico della Università di Padova %D 1993 %P 189-205 %V 90 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1993__90__189_0/ %G en %F RSMUP_1993__90__189_0