https://www.vedomosti.ru/library/news/2007/12/24/osnovy-pravoslavnoj-kultury-vvodyatsya-v-shkolah-s-1-sentyabrya-2009-goda?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=osnovy-pravoslavnoj-kultury-vvodyatsya-v-shkolah-s-1-sentyabrya-2009-goda