| article html file updated | 31 August 2025 09:29 CEST | Update | https://www.mdpi.com/2079-7737/9/1/21 |
| article html file updated | 20 July 2022 18:01 CEST | Update | N/A |
| article html file updated | 15 February 2020 04:40 CET | Update | N/A |
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| article html file updated | 20 January 2020 12:32 CET | Original file | N/A |
| article pdf uploaded. | 20 January 2020 12:28 CET | Version of Record | https://www.mdpi.com/2079-7737/9/1/21/pdf |
| article xml uploaded. | 20 January 2020 12:28 CET | Update | https://www.mdpi.com/2079-7737/9/1/21/xml |
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