Columbia subject headings:
Lotman, I︠U︡. M. (I︠U︡riĭ Mikhaĭlovich), 1922-1993.
Russian literature--History and criticism.
Semiotics.
Harvard subject headings:
Russian literature--History and criticism
Princeton subject headings:
Lotman, I︠U︡. M. (I︠U︡riĭ Mikhaĭlovich), 1922-1993.
Russian literature--Criticism and interpretation.
Russian literature--History and criticism.