Kogut, P. I., and V. S. Mel'nik. 2000. “On Weak Compactness of Bounded Sets in Banach and Locally Convex Spaces”. Ukrains’kyi Matematychnyi Zhurnal 52 (6): 731-39. https://umj.imath.kiev.ua/index.php/umj/article/view/4467.