1.
Rabanovych VI. On the Decomposition of a Diagonal Operator into a Linear Combination of Idempotents or Projectors. Ukr. Mat. Zhurn. [Internet]. 2005Mar.25 [cited 2024May26];57(3):388–393. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3606