Fedorov N.F., Sobranie sochinenii: v 4 tt. [Collected Works in 4 Volumes], A. Gacheva and S. Semenova (Eds.), Moscow, Progress Publ., 1995. Florovskii G.V., Puti russkogo bogosloviia [Paths of Russian Theology], Paris, Ymca-Press Publ., 1988, 603 pp. Gacheva A.G., Russkii kosmizm v ideiakh i litsakh [Major Concepts and Figures of Russian Cosmism], Moscow, Akademicheskii Proekt Publ., 2019, 431 pp. Khomiakov A.S., Tserkov’ odna: Opyt katekhizicheskogo izlozheniia ucheniia o tserkvi [The Church Is One: Essay on the Unity of the Church], [in:] A.S. Khomiakov, Izbrannye sochineniia [Selected Works], N. S. Arsen’ev (Ed.), Chekhov Publ. House, New York, 1955, 413 pp. Pierron J.-Ph., Le passage de témoin [Passing the Baton], Paris, Cerf Publ., 2006, 320 pp. Solovyov Vl.S., Sobranie sochinenii v XII tomakh [Selected Works in XII Volumes], St. Petersburg – Brussels, Catholic Publ. House “Life with God”, 1966. Spengler O., Zakat Evropy. Ocherki morfologii mirovoi istorii. 1. Geshtal’t i deistvitel’nost’ [The Decline of the West (Volume I): Form and Actuality], trans. K.A. Svas’ian, Moscow, Mysl’ Publ., 1998, 663 pp.