Anton Chekhov (2015). “The Life and Genius of Anton Chekhov: Letters, Diary, Reminiscences and Biography: Assorted Collection of Autobiographical Writings of the Renowned Russian Author and Playwright of Uncle Vanya, The Cherry Orchard, The Three Sisters and The Seagull”, p.329, e-artnow
Anton Chekhov, Milton Ehre (1992). “Chekhov for the Stage: The Sea Gull, Uncle Vanya, The Three Sisters, The Cherry Orchard”, p.50, Northwestern University Press