https://www.vedomosti.ru/business/news/2011/09/13/sd_nornikelya_utverdil_novyj_buyback_na_summu_do_45_mlrd?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=sd_nornikelya_utverdil_novyj_buyback_na_summu_do_45_mlrd