PlotnikovA. V. and TumbrukakiA. V. (2000) “Integro-differential equations with multivalued solutions”, Ukrains’kyi Matematychnyi Zhurnal, 52(3), pp. 359-367. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4426 (Accessed: 27July2024).