| article html file updated | 30 August 2025 20:15 CEST | Update | https://www.mdpi.com/2079-9721/7/2/39 |
| article html file updated | 19 July 2022 19:05 CEST | Update | N/A |
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| article html file updated | 25 May 2019 08:31 CEST | Original file | N/A |
| article pdf uploaded. | 25 May 2019 08:30 CEST | Version of Record | https://www.mdpi.com/2079-9721/7/2/39/pdf |
| article xml uploaded. | 25 May 2019 08:30 CEST | Update | https://www.mdpi.com/2079-9721/7/2/39/xml |
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