Sychova, A. M. Theory of determining the frequency of natural oscillations of span structures / A. M. Sychova, S. V. Zarin, A. V. Matskevich. — 1 файл (1,01 Мб). — DOI 10.18720/MCE.98.3. — Текст: электронный // Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. – 2020. – № 6 (98). — С. 9803. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — <URL:http://elib.spbstu.ru/dl/2/j21-186.pdf>.
| Period | Read | Copy | Open | Total | |||
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| Year 2021 | Quarter 1 | March | 1 | 0 | 3 | 0 | 4 |
| Quarter 2 | April | 3 | 0 | 2 | 0 | 5 | |
| May | 5 | 0 | 6 | 0 | 11 | ||
| June | 7 | 0 | 7 | 0 | 14 | ||
| Quarter 3 | July | 2 | 0 | 4 | 0 | 6 | |
| August | 4 | 0 | 6 | 0 | 10 | ||
| September | 2 | 0 | 1 | 0 | 3 | ||
| Quarter 4 | October | 1 | 0 | 1 | 0 | 2 | |
| November | 1 | 0 | 1 | 0 | 2 | ||
| December | 0 | 0 | 0 | 0 | 0 | ||
| Year 2022 | Quarter 1 | January | 1 | 0 | 3 | 0 | 4 |
| February | 2 | 0 | 0 | 0 | 2 | ||
| March | 5 | 0 | 3 | 0 | 8 | ||
| Quarter 2 | April | 1 | 0 | 3 | 0 | 4 | |
| May | 0 | 0 | 3 | 0 | 3 | ||
| June | 2 | 0 | 1 | 0 | 3 | ||
| Quarter 3 | July | 2 | 0 | 2 | 0 | 4 | |
| August | 2 | 0 | 1 | 0 | 3 | ||
| September | 3 | 0 | 4 | 0 | 7 | ||
| Quarter 4 | October | 0 | 0 | 0 | 0 | 0 | |
| November | 3 | 0 | 0 | 0 | 3 | ||
| December | 5 | 0 | 1 | 0 | 6 | ||
| Year 2023 | Quarter 1 | January | 14 | 0 | 3 | 0 | 17 |
| February | 1 | 0 | 1 | 0 | 2 | ||
| March | 0 | 0 | 2 | 0 | 2 | ||
| Quarter 2 | April | 3 | 0 | 3 | 0 | 6 | |
| May | 3 | 0 | 6 | 0 | 9 | ||
| June | 1 | 0 | 5 | 0 | 6 | ||
| Quarter 3 | July | 2 | 0 | 4 | 0 | 6 | |
| August | 2 | 0 | 2 | 0 | 4 | ||
| September | 2 | 0 | 2 | 0 | 4 | ||
| Quarter 4 | October | 3 | 0 | 4 | 0 | 7 | |
| November | 2 | 0 | 5 | 0 | 7 | ||
| December | 1 | 0 | 1 | 0 | 2 | ||
| Year 2024 | Quarter 1 | January | 3 | 0 | 2 | 0 | 5 |
| February | 2 | 0 | 1 | 0 | 3 | ||
| March | 2 | 0 | 2 | 0 | 4 | ||
| Quarter 2 | April | 6 | 0 | 6 | 0 | 12 | |
| May | 3 | 0 | 6 | 0 | 9 | ||
| June | 8 | 0 | 7 | 0 | 15 | ||
| Quarter 3 | July | 2 | 0 | 3 | 0 | 5 | |
| August | 2 | 0 | 2 | 0 | 4 | ||
| September | 4 | 0 | 4 | 0 | 8 | ||
| Quarter 4 | October | 5 | 0 | 1 | 0 | 6 | |
| November | 1 | 0 | 1 | 0 | 2 | ||
| December | 2 | 0 | 6 | 0 | 8 | ||
| Year 2025 | Quarter 1 | January | 10 | 0 | 14 | 0 | 24 |
| February | 6 | 0 | 6 | 0 | 12 | ||
| March | 6 | 0 | 0 | 0 | 6 | ||
| Quarter 2 | April | 10 | 0 | 3 | 0 | 13 | |
| May | 12 | 0 | 5 | 0 | 17 | ||
| June | 13 | 0 | 8 | 0 | 21 | ||
| Quarter 3 | July | 6 | 0 | 1 | 0 | 7 | |
| Total | 189 | 0 | 168 | 0 | 357 | ||