Беляев, Николай Михайлович. Сопротивление материалов: учебник для студентов высших технических учебных заведений / Н. М. Беляев. — Изд. 3-е, заново перераб. — Ленинград; Москва: Техтеоретиздат, 1939 (Санкт-Петербург, 2021). — 1 файл (23,2 Мб). — Загл. с титул. экрана. — Доступ по паролю из сети Интернет (чтение, печать). — <URL:http://elib.spbstu.ru/dl/2/ek21-25.pdf>. — DOI 10.18720/SPBPU/2/ek21-25. — Текст: электронный
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Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2021
|
Quarter 2
|
April
|
4
|
1
|
0
|
0
|
5
|
|
May
|
3
|
0
|
0
|
0
|
3
|
|
June
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 3
|
July
|
1
|
0
|
0
|
0
|
1
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 4
|
October
|
4
|
1
|
0
|
0
|
5
|
|
November
|
2
|
0
|
0
|
0
|
2
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2022
|
Quarter 1
|
January
|
6
|
1
|
0
|
0
|
7
|
|
February
|
2
|
0
|
0
|
0
|
2
|
|
March
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 2
|
April
|
1
|
0
|
0
|
0
|
1
|
|
May
|
8
|
0
|
0
|
0
|
8
|
|
June
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
0
|
0
|
0
|
|
September
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 4
|
October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
7
|
0
|
0
|
0
|
7
|
|
December
|
7
|
1
|
0
|
0
|
8
|
|
Year 2023
|
Quarter 1
|
January
|
2
|
0
|
0
|
0
|
2
|
|
February
|
4
|
1
|
0
|
0
|
5
|
|
March
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 2
|
April
|
1
|
0
|
0
|
0
|
1
|
|
May
|
4
|
0
|
0
|
0
|
4
|
|
June
|
5
|
1
|
0
|
0
|
6
|
|
Quarter 3
|
July
|
1
|
0
|
0
|
0
|
1
|
|
August
|
1
|
0
|
0
|
0
|
1
|
|
September
|
3
|
2
|
0
|
0
|
5
|
|
Quarter 4
|
October
|
2
|
0
|
0
|
0
|
2
|
|
November
|
1
|
1
|
0
|
0
|
2
|
|
December
|
8
|
1
|
0
|
0
|
9
|
|
Year 2024
|
Quarter 1
|
January
|
4
|
0
|
0
|
0
|
4
|
|
February
|
7
|
0
|
0
|
0
|
7
|
|
March
|
11
|
0
|
0
|
0
|
11
|
|
Quarter 2
|
April
|
5
|
1
|
0
|
0
|
6
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
Total
|
119
|
11
|
0
|
0
|
130
|
