TY JOUR TI URBAN PLANNING AND INTANGIBLE ASPECTS OF THE SUBJECT OF PROTECTION OF CULTURAL HERITAGE OBJECTS IN THE HISTORICAL ENVIRONMENT OF ST. PETERSBURG KW objects of protection of cultural heritage objects KW urban planning objects of protection KW intangible objects of protection KW methods of determining the subject of protection JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Semencov, S.V. AU Mihaylov, A.V. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov