| article html file updated | 31 August 2025 00:18 CEST | Update | https://www.mdpi.com/2076-2607/7/9/281 |
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| article pdf uploaded. | 18 September 2019 06:35 CEST | Updated version of record | https://www.mdpi.com/2076-2607/7/9/281/pdf |
| article xml uploaded. | 18 September 2019 06:35 CEST | Update | https://www.mdpi.com/2076-2607/7/9/281/xml |
| article xml file uploaded | 18 September 2019 06:35 CEST | Update | N/A |
| article html file updated | 22 August 2019 11:29 CEST | Original file | N/A |
| article pdf uploaded. | 22 August 2019 11:28 CEST | Version of Record | https://www.mdpi.com/2076-2607/7/9/281/pdf-vor |
| article xml uploaded. | 22 August 2019 11:28 CEST | Update | N/A |
| article xml file uploaded | 22 August 2019 11:28 CEST | Original file | N/A |
