Thomson, F. The Problem of the Reception of the Works of John IV leiunator of Constantinople among the Slavs: Nicon of the Black Mount and Cirycus of Novgorod. София: 1987 с. 23-45,.
Thomson, F. The Problem of the Reception of the Works of John IV leiunator of Constantinople among the Slavs: Nicon of the Black Mount and Cirycus of Novgorod. София: 1987 с. 23-45,.
Thomson, F. (1987) The Problem of the Reception of the Works of John IV leiunator of Constantinople among the Slavs: Nicon of the Black Mount and Cirycus of Novgorod, София: с. 23-45,.
Thomson, F. (1987). The Problem of the Reception of the Works of John IV leiunator of Constantinople among the Slavs: Nicon of the Black Mount and Cirycus of Novgorod. София: с. 23-45.
Thomson F. The Problem of the Reception of the Works of John IV leiunator of Constantinople among the Slavs: Nicon of the Black Mount and Cirycus of Novgorod. София: 1987. p. с. 23-45.
