Bilalov, B. T. and Muradov, T. R. (2007) “On equivalent bases in Banach spaces”, Ukrains’kyi Matematychnyi Zhurnal, 59(4), pp. 551–554. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3329 (Accessed: 13June2024).