Крутик, Александр Борисович. Особенности конкурентной среды на рынке туристических услуг и конкурентоспособность туристических фирм [Электронный ресурс] = Features of the competitive environment in the market of tourist services and competitiveness of travel companies / А.Б. Крутик. — (Региональная и отраслевая экономика). — Электрон. текстовые дан. (1 файл : 224 Кб) // Научно-технические ведомости Санкт-Петербургского государственного политехнического университета. Сер. : Экономические науки = St. Petersburg state polytechnical university journal. Economics: научное издание / М-во образования и науки Российской Федерации. – Санкт-Петербург. – 2014. – № 1 (187). — Загл. с титул. экрана. — Электронная версия печатной публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/3836.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2014 | Quarter 2 | 28 | 0 | 40 | 0 | 68 |
| Quarter 3 | 19 | 0 | 14 | 0 | 33 | |
| Quarter 4 | 21 | 0 | 8 | 0 | 29 | |
| Year 2015 | Quarter 1 | 16 | 0 | 6 | 0 | 22 |
| Quarter 2 | 19 | 0 | 13 | 0 | 32 | |
| Quarter 3 | 11 | 0 | 10 | 0 | 21 | |
| Quarter 4 | 17 | 0 | 26 | 0 | 43 | |
| Year 2016 | Quarter 1 | 7 | 0 | 7 | 0 | 14 |
| Quarter 2 | 13 | 0 | 10 | 0 | 23 | |
| Quarter 3 | 12 | 0 | 1 | 0 | 13 | |
| Quarter 4 | 11 | 0 | 12 | 0 | 23 | |
| Year 2017 | Quarter 1 | 7 | 0 | 4 | 0 | 11 |
| Quarter 2 | 8 | 0 | 7 | 0 | 15 | |
| Quarter 3 | 8 | 0 | 10 | 0 | 18 | |
| Quarter 4 | 8 | 0 | 10 | 0 | 18 | |
| Year 2018 | Quarter 1 | 5 | 0 | 24 | 0 | 29 |
| Quarter 2 | 6 | 0 | 28 | 0 | 34 | |
| Quarter 3 | 9 | 0 | 11 | 0 | 20 | |
| Quarter 4 | 9 | 0 | 7 | 0 | 16 | |
| Year 2019 | Quarter 1 | 10 | 0 | 5 | 0 | 15 |
| Quarter 2 | 4 | 0 | 12 | 0 | 16 | |
| Quarter 3 | 5 | 0 | 14 | 0 | 19 | |
| Quarter 4 | 4 | 0 | 4 | 0 | 8 | |
| Year 2020 | Quarter 1 | 7 | 0 | 16 | 0 | 23 |
| Quarter 2 | 14 | 0 | 0 | 0 | 14 | |
| Quarter 3 | 9 | 0 | 0 | 0 | 9 | |
| Quarter 4 | 9 | 0 | 12 | 0 | 21 | |
| Year 2021 | Quarter 1 | 7 | 0 | 5 | 0 | 12 |
| Quarter 2 | 12 | 0 | 9 | 0 | 21 | |
| Quarter 3 | 9 | 0 | 7 | 0 | 16 | |
| Quarter 4 | 3 | 0 | 5 | 0 | 8 | |
| Year 2022 | Quarter 1 | 6 | 0 | 9 | 0 | 15 |
| Quarter 2 | 5 | 0 | 9 | 0 | 14 | |
| Quarter 3 | 7 | 0 | 5 | 0 | 12 | |
| Quarter 4 | 16 | 0 | 10 | 0 | 26 | |
| Year 2023 | Quarter 1 | 11 | 0 | 7 | 0 | 18 |
| Quarter 2 | 7 | 0 | 106 | 0 | 113 | |
| Quarter 3 | 7 | 0 | 30 | 0 | 37 | |
| Quarter 4 | 16 | 0 | 135 | 0 | 151 | |
| Year 2024 | Quarter 1 | 4 | 0 | 171 | 0 | 175 |
| Quarter 2 | 16 | 0 | 414 | 0 | 430 | |
| Quarter 3 | 21 | 0 | 119 | 0 | 140 | |
| Quarter 4 | 11 | 0 | 169 | 0 | 180 | |
| Year 2025 | Quarter 1 | 13 | 0 | 227 | 0 | 240 |
| Quarter 2 | 14 | 0 | 378 | 0 | 392 | |
| Quarter 3 | 9 | 0 | 14 | 0 | 23 | |
| Total | 490 | 0 | 2,140 | 0 | 2,630 | |