1. [17] Ward A.S. , Problem, p. 352 of Proceedings of the International Symposium on Topology and its Applications, Herceg-Novi, 1968, Yugoslavia [ сuΜnοаuя nο u ее ⊓рuμнеuяХ, Херцеγ-НοΒи, 1968, ю-οслаΒия] (Savez Drustava Matematicara, Fizicara I Astronoma, Belgrade, 1969).
2. Continuous lattices
3. Separate continuity and joint continuity
4. Additional notes on continuity in semitopological semigroups
5. Joint continuity in semitopological semigroups;Lawson;Illinois J. Math.,1974