Title: Filosofskai︠a︡ perepiska bratʹev Trubet︠s︡kikh
Subjects: Philosophers, Correspondence, Intellectuals
Places: Russia
People: E. N. Trubet︠s︡koĭ kni︠a︡zʹ (1863-1920), S. N. Trubet︠s︡koĭ kni︠a︡zʹ (1862-1905)