B. P. Tanana, “Projections of compact semilattices”, Izv. Vyssh. Uchebn. Zaved. Mat., 1980, no. 9, 32–40
1976
2.
B. P. Tanana, “Topological semigroups with certain types of lattices of closed subsemigroups”, Izv. Vyssh. Uchebn. Zaved. Mat., 1976, no. 4, 67–73; Soviet Math. (Iz. VUZ), 20:4 (1976), 54–59
