Oguy, Oleksandr, and Olha Ivasiuk. 2019. “Christian Symbolism of Color in the Middle Ages in the Context of a New Concept of the Symbol As a Hypermark”. Mediaforum : Analytics, Forecasts, Information Management 7 (December): 188-210. https://doi.org/10.31861/mediaforum.2019.7.188-210.