John Dryden (1808). “The Works of John Dryden: Now First Collected in Eighteen Volumes. Illustrated with Notes, Historical, Critical, and Explanatory, and a Life of the Author”, p.19
"Expulsion". Aleksandr Solzhenitsyn's letter to the Secretariat of the Soviet Writers' Union (November 12, 1969) as translated in "Solzhenitsyn: A Documentary Record" edited by Leopold Labedz, 1970.