| Mode: For a past period of time For all time by years For all time by quarters For all time by months |
Степучев, В. Г. Дифференциальные уравнения второго порядка [Электронный ресурс] / Степучев В. Г. — Санкт-Петербург: Лань, 2022. — 180 с. — Книга из коллекции Лань - Математика. — <URL:https://e.lanbook.com/book/221237>. — <URL:https://e.lanbook.com/img/cover/book/221237.jpg>.
| Period | Read | Copy | Open | Total | |
|---|---|---|---|---|---|
| Last day | 0 | 0 | 0 | 0 | 0 |
| Last 30 days | 0 | 0 | 0 | 0 | 0 |
| Last 365 days | 0 | 0 | 0 | 4 | 4 |
| All time | 0 | 0 | 0 | 4 | 4 |