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, Vol. 59, no. 1, Mar. 2023, pp. 20-28, doi:10.30970/ms.59.1.20-28.