Pugh, Emerson W. Building IBM: shaping an industry and its technology / Emerson W. Pugh. — Cambridge, Massachusetts; London, England: MIT Press, 2009. — 1 PDF (xvi, 405 p.): ill. — (History of computing). — Доступ по паролю из сети Интернет (чтение, печать). — Mode of access: World Wide Web. — <URL:https://ieeexplore.ieee.org/xpl/bkabstractplus.jsp?bkn=6267428>. — Текст: электронный
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| 2021 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
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| Year 2022 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
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| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2023 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
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| Quarter 3 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 4 | 0 | 0 | 0 | 2 | 2 | |
| Year 2024 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
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| Total | 0 | 0 | 0 | 20 | 20 | |