[1] A. V. Arkhangelskii V. I. Ponomarev: Foundations of General Topology through Problems and Exercises. (Russian). Moscow, 1974.

[2] V. I. Malyhin: On narrow spaces. (Russian). Topological spaces and their mappings, 1983, Riga, 70-76. MR 0731745

[3] R. Sikorski: Boolean Algebras. Berlin, 1964. MR 0177920 | Zbl 0123.01303

[4] A. Szymański: Some applications of tiny sequences. Suppl. Rend. Circolo Matem. Palermo, seг.II, N 3,(1984), 321-328. MR 0744396

[5] A. I. Veksler: Dominant sequences and narrow topological spaces. (Russian). Topological spaces and their mappings, 1981, Riga, 159-174, 186. MR 0630435 | Zbl 0488.54027

[6] A. I. Veksler: Dominant sequences and narrow spaces. (Russian). Uspekhi Mat. Nauk, 37(1), (1982), 143-144. MR 0643775 | Zbl 0508.54031

[7] A. I. Veksler: On dominant sequences and narrow spaces. (Russian). Topological spaces and their mappings, 1985, Riga, 33-43. Zbl 0628.54022

[8] A. I. Veksler: Dominant sequences and topological narrow spaces. Colloq. Math. Soc. J. Boloyai, 41, Topology and applications (Eger, 1983), 635-654. MR 0863945

[9] A. I. Veksler: Narrow topological spaces and the products of topological spaces. (Russian). Аpplications of Functional Аnalysis to Аpproximation Theory, 1985, Kalinin, 31 - 42. MR 0828059

[10] A. I. Veksler: Nettings in zero-dimensional compact spaces. Lecture Notes in Math., 1060, Topology Proceedings (Leningrad, 1982), Berlin, 1984, 105- 114. MR 0770230