| article html file updated | 25 December 2025 12:51 CET | Update | https://www.mdpi.com/1424-2818/13/6/239 |
| article html file updated | 2 September 2025 09:22 CEST | Update | N/A |
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| article html file updated | 10 June 2021 05:40 CEST | Update | N/A |
| article pdf uploaded. | 10 June 2021 05:38 CEST | Updated version of record | https://www.mdpi.com/1424-2818/13/6/239/pdf |
| article xml uploaded. | 10 June 2021 05:38 CEST | Update | https://www.mdpi.com/1424-2818/13/6/239/xml |
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| article html file updated | 31 May 2021 05:52 CEST | Original file | N/A |
| article pdf uploaded. | 31 May 2021 05:51 CEST | Version of Record | https://www.mdpi.com/1424-2818/13/6/239/pdf-vor |
| article xml file uploaded | 31 May 2021 05:51 CEST | Original file | N/A |
