Shchavelev, D.S. Multicriterion analysis in technical-economic calculations of hydropower and water-management facilities [Electronic resource] / D.S. Shchavelev, M.P. Fedorov: ил. // Power Technology and Engineering. – New York. – 1988. – Volume 22. №2. — P. 85-91. — Загл. с титул. экрана. — Электрон. версия печ. публикации 1988 г. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Acrobat Reader 5.0. — <URL:http://elib.spbstu.ru/dl/007382.pdf>. — <URL:https://link.springer.com/article/10.1007/BF01428971>.
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| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
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| Quarter 2 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 4 | 0 | 0 | 0 | 5 | 5 | |
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| Quarter 3 | 0 | 0 | 0 | 3 | 3 | |
| Total | 0 | 0 | 0 | 25 | 25 | |