SAÏDI, Soumia and YAROU, Mustapha Fateh. Set-valued perturbation for time dependent subdifferential operator. Topological Methods in Nonlinear Analysis. Online. 1 September 2015. Vol. 46, no. 1, pp. 447 - 470. [Accessed 22 July 2024]. DOI 10.12775/TMNA.2015.054.