LivinskiiV. O. (1994) “Essential normality of some classes of operators in infinite tensor products of Hilbert spaces”, Ukrains’kyi Matematychnyi Zhurnal, 46(9), pp. 1164–1170. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5633 (Accessed: 24November2024).