Сборник задач по дифференциальным уравнениям и вариационному исчислению / под ред. В. К. Романко. — 6-е изд. — Москва: Лаборатория знаний, 2020. — 222 с. — Доступ по паролю из сети Интернет (чтение). — <URL:https://ibooks.ru/reading.php?short=1&productid=335258>. — <URL:https://ibooks.ru/resize/w188/images/T/9785001017998_2020.jpg>. — Текст: электронный
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2022
|
Quarter 3
|
September
|
0
|
0
|
0
|
1
|
1
|
|
Quarter 4
|
October
|
0
|
0
|
0
|
1
|
1
|
|
November
|
0
|
0
|
0
|
1
|
1
|
|
December
|
0
|
0
|
0
|
1
|
1
|
|
Year 2023
|
Quarter 1
|
January
|
0
|
0
|
0
|
1
|
1
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
2
|
2
|
|
May
|
0
|
0
|
0
|
2
|
2
|
|
June
|
0
|
0
|
0
|
1
|
1
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
0
|
1
|
1
|
|
September
|
0
|
0
|
0
|
2
|
2
|
|
Quarter 4
|
October
|
0
|
0
|
0
|
1
|
1
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
0
|
0
|
0
|
1
|
1
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
5
|
5
|
|
Total
|
0
|
0
|
0
|
20
|
20
|
