| article html file updated | 2 September 2025 04:21 CEST | Update | https://www.mdpi.com/2227-9717/9/4/721 |
| article html file updated | 25 July 2022 12:54 CEST | Update | - |
| article html file updated | 23 April 2021 08:40 CEST | Update | - |
| article pdf uploaded. | 23 April 2021 08:39 CEST | Updated version of record | https://www.mdpi.com/2227-9717/9/4/721/pdf |
| article xml uploaded. | 23 April 2021 08:39 CEST | Update | https://www.mdpi.com/2227-9717/9/4/721/xml |
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| article html file updated | 21 April 2021 15:41 CEST | Update | - |
| article pdf uploaded. | 21 April 2021 15:40 CEST | Updated version of record | https://www.mdpi.com/2227-9717/9/4/721/pdf-vor |
| article xml file uploaded | 21 April 2021 15:40 CEST | Update | - |
| article html file updated | 21 April 2021 10:18 CEST | Update | - |
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| article html file updated | 20 April 2021 15:49 CEST | Original file | - |
| article pdf uploaded. | 20 April 2021 15:48 CEST | Updated version of record | https://www.mdpi.com/2227-9717/9/4/721/pdf-vor |
| article xml file uploaded | 20 April 2021 15:48 CEST | Original file | - |
| article pdf uploaded. | 19 April 2021 14:15 CEST | Version of Record | https://www.mdpi.com/2227-9717/9/4/721/pdf-vor |
