| Mode: For a past period of time For all time by years For all time by quarters For all time by months |
Шакер И.Е. Эволюция природы цифрового актива: фьючерсы на Bitcoin // Финансы, деньги, инвестиции. – 2017. – №4 — <URL:http://elib.fa.ru/art2017/bv2770.pdf>.
| Period | Read | Copy | Open | Total | |
|---|---|---|---|---|---|
| Year 2018 | 0 | 0 | 1 | 0 | 1 |
| Year 2019 | 1 | 0 | 0 | 0 | 1 |
| Year 2020 | 0 | 0 | 1 | 0 | 1 |
| Total | 1 | 0 | 2 | 0 | 3 |