S. I. Adi︠a︡n

• Mathematical logic, the theory of algorithms, and the theory of sets
• Matematicheskai︠a︡ logika i algebra
• Vsesoi︠u︡znai︠a︡ konferent︠s︡ii︠a︡ po matematicheskoĭ logike (9; 1988; Leningrad)