| article html file updated | 21 August 2026 03:52 CEST | Update | https://www.mdpi.com/2218-1997/7/12/503 |
| article html file updated | 7 September 2025 09:04 CEST | Update | N/A |
| article html file updated | 30 July 2022 22:55 CEST | Update | N/A |
| article html file updated | 17 December 2021 12:06 CET | Original file | N/A |
| article pdf uploaded. | 17 December 2021 12:05 CET | Version of Record | https://www.mdpi.com/2218-1997/7/12/503/pdf |
| article xml uploaded. | 17 December 2021 12:05 CET | Update | https://www.mdpi.com/2218-1997/7/12/503/xml |
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