Markin MV. On scalar-type spectral operators and Carleman ultradifferentiable C0-semigroups. Ukr. Mat. Zhurn. [Internet]. 2008 Sep. 25 [cited 2025 Dec. 6];60(9):1215 – 1233. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3238