Niemtchenko, K. 2014. Implementation of elements of orthodox sacraments and liturgical persecution in opera (for example, «The legend of the invisible city of Kitezh and the maiden Fevronia» by N. Rimsky-Korsakov). Music art and culturе. 20 (Dec. 2014), 223-231. DOI:https://doi.org/https://doi.org/10.31723/2524-0447-2014-20-223-231.