Юферев, С.А. Режимы удвоения и утроения периода колебаний в неавтономном осцилляторе Дуффинга [Электронный ресурс] / С.А. Юферев, Б.А. Мартынов. — (Секция "Радиофизика"). — Электрон. текстовые дан. (1 файл : 103 Кб) // Материалы...24 - 29 ноября 2003г. [Электронный ресурс] / Санкт-Петербургский государственный политехнический университет. Межвузовская научно-техническая конференция, Неделя науки (32; 2003; Санкт-Петербург); Совет СПбГПУ по научно-исследовательской работе студентов; Под общ. ред. В.В. Глухова. – Санкт-Петербург. – 2005. – Радиофизический факультет [Электронный ресурс]. — Загл. с титул. экрана. — Электрон. версия печ. публикации 2004г. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 4.0. — <URL:http://elib.spbstu.ru/dl/004955.pdf>.
| Period | Read | Copy | Open | Total | |||
|---|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | January | 2 | 0 | 1 | 0 | 3 |
| February | 1 | 0 | 1 | 0 | 2 | ||
| March | 2 | 0 | 2 | 0 | 4 | ||
| Quarter 2 | April | 1 | 0 | 0 | 0 | 1 | |
| May | 1 | 0 | 1 | 0 | 2 | ||
| June | 1 | 0 | 0 | 0 | 1 | ||
| Quarter 3 | July | 2 | 0 | 0 | 0 | 2 | |
| August | 0 | 0 | 0 | 0 | 0 | ||
| September | 3 | 0 | 2 | 0 | 5 | ||
| Quarter 4 | October | 2 | 0 | 3 | 0 | 5 | |
| November | 3 | 0 | 1 | 0 | 4 | ||
| December | 1 | 0 | 2 | 0 | 3 | ||
| Year 2013 | Quarter 1 | January | 3 | 0 | 1 | 0 | 4 |
| February | 4 | 0 | 2 | 0 | 6 | ||
| March | 0 | 0 | 0 | 0 | 0 | ||
| Quarter 2 | April | 0 | 0 | 1 | 0 | 1 | |
| May | 4 | 0 | 3 | 0 | 7 | ||
| June | 3 | 0 | 6 | 0 | 9 | ||
| Quarter 3 | July | 8 | 0 | 6 | 0 | 14 | |
| August | 5 | 0 | 2 | 0 | 7 | ||
| September | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 4 | October | 4 | 0 | 0 | 0 | 4 | |
| November | 3 | 1 | 5 | 0 | 9 | ||
| December | 7 | 0 | 2 | 0 | 9 | ||
| Year 2014 | Quarter 1 | January | 1 | 0 | 0 | 0 | 1 |
| February | 7 | 0 | 4 | 0 | 11 | ||
| March | 5 | 0 | 1 | 0 | 6 | ||
| Quarter 2 | April | 3 | 0 | 1 | 0 | 4 | |
| May | 5 | 0 | 1 | 0 | 6 | ||
| June | 5 | 0 | 1 | 0 | 6 | ||
| Quarter 3 | July | 7 | 0 | 2 | 0 | 9 | |
| August | 6 | 0 | 0 | 0 | 6 | ||
| September | 3 | 0 | 1 | 0 | 4 | ||
| Quarter 4 | October | 10 | 0 | 8 | 0 | 18 | |
| November | 3 | 0 | 1 | 0 | 4 | ||
| December | 4 | 0 | 1 | 0 | 5 | ||
| Year 2015 | Quarter 1 | January | 2 | 0 | 0 | 0 | 2 |
| February | 9 | 0 | 1 | 0 | 10 | ||
| March | 3 | 0 | 4 | 0 | 7 | ||
| Quarter 2 | April | 5 | 0 | 1 | 0 | 6 | |
| May | 3 | 0 | 6 | 0 | 9 | ||
| June | 8 | 0 | 3 | 0 | 11 | ||
| Quarter 3 | July | 5 | 0 | 0 | 0 | 5 | |
| August | 1 | 0 | 1 | 0 | 2 | ||
| September | 0 | 0 | 1 | 0 | 1 | ||
| Quarter 4 | October | 5 | 0 | 0 | 0 | 5 | |
| November | 1 | 0 | 5 | 0 | 6 | ||
| December | 0 | 0 | 0 | 0 | 0 | ||
| Year 2016 | Quarter 1 | January | 2 | 0 | 5 | 0 | 7 |
| February | 4 | 0 | 1 | 0 | 5 | ||
| March | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 2 | April | 6 | 0 | 0 | 0 | 6 | |
| May | 7 | 0 | 0 | 0 | 7 | ||
| June | 6 | 0 | 0 | 0 | 6 | ||
| Quarter 3 | July | 2 | 0 | 0 | 0 | 2 | |
| August | 1 | 0 | 1 | 0 | 2 | ||
| September | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 4 | October | 2 | 0 | 1 | 0 | 3 | |
| November | 5 | 0 | 2 | 0 | 7 | ||
| December | 1 | 0 | 1 | 0 | 2 | ||
| Year 2017 | Quarter 1 | January | 4 | 0 | 1 | 0 | 5 |
| February | 2 | 0 | 0 | 0 | 2 | ||
| March | 3 | 0 | 1 | 0 | 4 | ||
| Quarter 2 | April | 2 | 0 | 1 | 0 | 3 | |
| May | 4 | 0 | 1 | 0 | 5 | ||
| June | 2 | 0 | 2 | 0 | 4 | ||
| Quarter 3 | July | 5 | 0 | 1 | 0 | 6 | |
| August | 5 | 0 | 4 | 0 | 9 | ||
| September | 3 | 0 | 2 | 0 | 5 | ||
| Quarter 4 | October | 4 | 0 | 2 | 0 | 6 | |
| November | 1 | 0 | 0 | 0 | 1 | ||
| December | 8 | 0 | 2 | 0 | 10 | ||
| Year 2018 | Quarter 1 | January | 2 | 0 | 0 | 0 | 2 |
| February | 2 | 0 | 0 | 0 | 2 | ||
| March | 2 | 0 | 0 | 0 | 2 | ||
| Quarter 2 | April | 4 | 0 | 3 | 0 | 7 | |
| May | 3 | 0 | 1 | 0 | 4 | ||
| June | 2 | 0 | 1 | 0 | 3 | ||
| Quarter 3 | July | 3 | 0 | 2 | 0 | 5 | |
| August | 4 | 0 | 0 | 0 | 4 | ||
| September | 8 | 0 | 4 | 0 | 12 | ||
| Quarter 4 | October | 1 | 0 | 0 | 0 | 1 | |
| November | 3 | 0 | 2 | 0 | 5 | ||
| December | 2 | 0 | 1 | 0 | 3 | ||
| Year 2019 | Quarter 1 | January | 5 | 0 | 1 | 0 | 6 |
| February | 2 | 0 | 0 | 0 | 2 | ||
| March | 0 | 0 | 2 | 0 | 2 | ||
| Quarter 2 | April | 3 | 0 | 3 | 0 | 6 | |
| May | 2 | 0 | 0 | 0 | 2 | ||
| June | 1 | 0 | 2 | 0 | 3 | ||
| Quarter 3 | July | 2 | 0 | 6 | 0 | 8 | |
| August | 1 | 0 | 0 | 0 | 1 | ||
| September | 2 | 0 | 0 | 0 | 2 | ||
| Quarter 4 | October | 1 | 0 | 0 | 0 | 1 | |
| November | 0 | 0 | 5 | 0 | 5 | ||
| December | 3 | 0 | 8 | 0 | 11 | ||
| Year 2020 | Quarter 1 | January | 3 | 0 | 7 | 0 | 10 |
| February | 0 | 0 | 7 | 0 | 7 | ||
| March | 5 | 0 | 3 | 0 | 8 | ||
| Quarter 2 | April | 0 | 0 | 0 | 0 | 0 | |
| May | 2 | 0 | 0 | 0 | 2 | ||
| June | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 3 | July | 5 | 0 | 0 | 0 | 5 | |
| August | 4 | 0 | 0 | 0 | 4 | ||
| September | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 4 | October | 1 | 0 | 1 | 0 | 2 | |
| November | 3 | 0 | 5 | 0 | 8 | ||
| December | 2 | 0 | 2 | 0 | 4 | ||
| Year 2021 | Quarter 1 | January | 6 | 0 | 3 | 0 | 9 |
| February | 3 | 0 | 1 | 0 | 4 | ||
| March | 4 | 0 | 1 | 0 | 5 | ||
| Quarter 2 | April | 1 | 0 | 1 | 0 | 2 | |
| May | 2 | 0 | 3 | 0 | 5 | ||
| June | 4 | 0 | 1 | 0 | 5 | ||
| Quarter 3 | July | 2 | 0 | 2 | 0 | 4 | |
| August | 0 | 0 | 2 | 0 | 2 | ||
| September | 0 | 0 | 2 | 0 | 2 | ||
| Quarter 4 | October | 3 | 0 | 4 | 0 | 7 | |
| November | 2 | 0 | 1 | 0 | 3 | ||
| December | 0 | 0 | 1 | 0 | 1 | ||
| Year 2022 | Quarter 1 | January | 0 | 0 | 1 | 0 | 1 |
| February | 1 | 0 | 6 | 0 | 7 | ||
| March | 1 | 0 | 1 | 0 | 2 | ||
| Quarter 2 | April | 1 | 0 | 5 | 0 | 6 | |
| May | 0 | 0 | 0 | 0 | 0 | ||
| June | 5 | 0 | 4 | 0 | 9 | ||
| Quarter 3 | July | 4 | 0 | 1 | 0 | 5 | |
| August | 3 | 0 | 0 | 0 | 3 | ||
| September | 1 | 0 | 1 | 0 | 2 | ||
| Quarter 4 | October | 2 | 0 | 0 | 0 | 2 | |
| November | 6 | 0 | 4 | 0 | 10 | ||
| December | 3 | 0 | 2 | 0 | 5 | ||
| Year 2023 | Quarter 1 | January | 2 | 0 | 0 | 0 | 2 |
| February | 2 | 0 | 3 | 0 | 5 | ||
| March | 0 | 0 | 1 | 0 | 1 | ||
| Quarter 2 | April | 1 | 0 | 0 | 0 | 1 | |
| May | 1 | 0 | 2 | 0 | 3 | ||
| June | 2 | 0 | 5 | 0 | 7 | ||
| Quarter 3 | July | 2 | 0 | 7 | 0 | 9 | |
| August | 3 | 0 | 2 | 0 | 5 | ||
| September | 2 | 0 | 1 | 0 | 3 | ||
| Quarter 4 | October | 1 | 0 | 4 | 0 | 5 | |
| November | 5 | 0 | 3 | 0 | 8 | ||
| December | 7 | 0 | 2 | 0 | 9 | ||
| Year 2024 | Quarter 1 | January | 3 | 0 | 1 | 0 | 4 |
| February | 1 | 0 | 5 | 0 | 6 | ||
| March | 1 | 0 | 3 | 0 | 4 | ||
| Quarter 2 | April | 3 | 0 | 8 | 0 | 11 | |
| May | 3 | 0 | 6 | 0 | 9 | ||
| June | 4 | 0 | 4 | 0 | 8 | ||
| Quarter 3 | July | 6 | 0 | 7 | 0 | 13 | |
| August | 6 | 0 | 3 | 0 | 9 | ||
| September | 0 | 0 | 2 | 0 | 2 | ||
| Total | 452 | 1 | 294 | 0 | 747 | ||