%0 Journal Article %T TO THE QUESTION OF STUDING UNDERGROUND ARCHITECTURE OF CHRISTIANITY %A Borisov, S.V. %A Ragulina, A.V. %K architecture, Christianity, design methodology, theological approach, underground temple, cave monastery %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2021 %N 6 %P 8 %I Belgorod State Technological University named after V.G. Shukhov