LavrenyukS. P. and PtashnikM. B. (1998) “Pseudoparabolic variational inequalities without initial conditions”, Ukrains’kyi Matematychnyi Zhurnal, 50(7), pp. 919–929. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4872 (Accessed: 24November2024).