JAIN, P. K., and S. K. KAUSHIK. “ON BOUNDEDLY COMPLETE TRANSFINITE BASES IN BANACH SPACES”. Tamkang Journal of Mathematics 21, no. 1 (March 1, 1990): 7–12. Accessed April 27, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4628.