https://www.vedomosti.ru/finance/news/2017/12/18/745590-krupneishaya-chikagskaya-birzha-cme-otkrila-torgi-fyuchersami-na-bitkoin?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=745590-krupneishaya-chikagskaya-birzha-cme-otkrila-torgi-fyuchersami-na-bitkoin