| article html file updated | 31 August 2025 07:29 CEST | Update | https://www.mdpi.com/2076-3921/9/1/21 |
| article html file updated | 19 July 2022 20:48 CEST | Update | - |
| article html file updated | 14 February 2020 21:45 CET | Update | - |
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| article pdf uploaded. | 21 January 2020 10:29 CET | Updated version of record | https://www.mdpi.com/2076-3921/9/1/21/pdf |
| article xml uploaded. | 21 January 2020 10:29 CET | Update | https://www.mdpi.com/2076-3921/9/1/21/xml |
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| article html file updated | 3 January 2020 09:03 CET | Original file | - |
| article pdf uploaded. | 3 January 2020 09:02 CET | Updated version of record | https://www.mdpi.com/2076-3921/9/1/21/pdf-vor |
| article xml file uploaded | 3 January 2020 09:02 CET | Update | - |
| article pdf uploaded. | 25 December 2019 14:57 CET | Version of Record | https://www.mdpi.com/2076-3921/9/1/21/pdf-vor |
| article xml file uploaded | 25 December 2019 14:57 CET | Original file | - |
