G. Bonanno, G. D’Agui, P. Winkert, (Pure and Applied Functional Analysis)2019 Lascia un commento / Publications / Di admin A TWO CRITICAL POINTS THEOREM FOR NON-DIFFERENTIABLE FUNCTIONS AND APPLICATIONS TO HIGHLY DISCONTINUOUS PDE’S GABRIELE BONANNO, GIUSEPPINA D’AGUI’, AND PATRICK WINKERT