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| [CD] |
| International scientific journal Industry 4.0 | ÐÅ19 |
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| |
| Sofia |
| 12 ñì |
| 2016- |
| äðóãà |
ISSN: | 2534-8582 |
| 681.3+338.45 |
| |
| |
|
| | Older Receipts (by Years): | 2021; 2020; 2019 |
|
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