https://www.vedomosti.ru/library/news/2005/10/26/massovaya-ustanovka-sistem-videonablyudeniya-v-poezdah-metro-nachnetsya-s-1-dekabrya?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=massovaya-ustanovka-sistem-videonablyudeniya-v-poezdah-metro-nachnetsya-s-1-dekabrya