| article html file updated | 30 August 2025 10:40 CEST | Update | https://www.mdpi.com/2077-0383/8/1/52 |
| article html file updated | 17 July 2022 21:30 CEST | Update | - |
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| article html file updated | 7 January 2019 07:00 CET | Original file | - |
| article pdf uploaded. | 7 January 2019 06:58 CET | Version of Record | https://www.mdpi.com/2077-0383/8/1/52/pdf |
| article xml uploaded. | 7 January 2019 06:58 CET | Update | https://www.mdpi.com/2077-0383/8/1/52/xml |
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