Pham, D. T. “Remark on the Tautness Modulo an Analytic Hypersurface of Hartogs Type Domains”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, no. 1, Jan. 2020, pp. 119-2, http://umj.imath.kiev.ua/index.php/umj/article/view/182.