Myers, G. The collision of the Pagan and Christian in a Rimsky-Korsakov fantasy opera ["Christmas Eve"], or how Nikolai Andreevich spent his Christmas holidays. София: 2003 87-93,.
Myers, G. The collision of the Pagan and Christian in a Rimsky-Korsakov fantasy opera ["Christmas Eve"], or how Nikolai Andreevich spent his Christmas holidays. София: 2003 87-93,.
Myers, G. (2003) The collision of the Pagan and Christian in a Rimsky-Korsakov fantasy opera ["Christmas Eve"], or how Nikolai Andreevich spent his Christmas holidays, София: 87-93,.
Myers, G. (2003). The collision of the Pagan and Christian in a Rimsky-Korsakov fantasy opera ["Christmas Eve"], or how Nikolai Andreevich spent his Christmas holidays. София: 87-93.
Myers G. The collision of the Pagan and Christian in a Rimsky-Korsakov fantasy opera ["Christmas Eve"], or how Nikolai Andreevich spent his Christmas holidays. София: 2003. p. 87-93.