Columbia subject headings:
Literature.
Lotman, I︠U︡. M. (I︠U︡riĭ Mikhaĭlovich), 1922-1993.
Russian literature--History and criticism.
Russian poetry--History and criticism.
Semiotics.
Harvard subject headings:
Lotman, I͡U. M. (I͡Uriĭ Mikhaĭlovich), 1922-1993--Periodicals.
Russian literature--History and criticism--Periodicals
Semiotics--Periodicals.
Princeton subject headings: