https://www.vedomosti.ru/library/news/2008/10/17/rosaviaciya-vvodit-ogranicheniya-na-srok-predvaritelnoj-prodazhi-biletov?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=rosaviaciya-vvodit-ogranicheniya-na-srok-predvaritelnoj-prodazhi-biletov