Gutik, O. V., and M. S. Mykhalenych. “On a Semitopological Semigroup $\boldsymbol{B}_{\omega}^{\mathscr{F}}$ When a Family $\mathscr{F}$ Consists of Inductive Non-Empty Subsets of $\omega$”. Matematychni Studii 59, no. 1 (March 28, 2023): 20-28. Accessed December 27, 2024. http://matstud.org.ua/ojs/index.php/matstud/article/view/373.