“CONNECTION BETWEEN THE LOWER P-FRAME CONDITION AND EXISTENCE OF RECONSTRUCTION FORMULAS IN A BANACH SPACE AND ITS DUAL” (2005) Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, 97, pp. 123–133. Available at: https://annual.uni-sofia.bg/index.php/fmi/article/view/150 (Accessed: 14 December 2025).