| article html file updated | 6 September 2025 23:55 CEST | Update | https://www.mdpi.com/2077-0375/11/9/668 |
| article html file updated | 30 July 2022 03:22 CEST | Update | N/A |
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| article pdf uploaded. | 31 August 2021 12:06 CEST | Updated version of record | https://www.mdpi.com/2077-0375/11/9/668/pdf |
| article xml uploaded. | 31 August 2021 12:06 CEST | Update | https://www.mdpi.com/2077-0375/11/9/668/xml |
| article xml file uploaded | 31 August 2021 12:06 CEST | Update | N/A |
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| article pdf uploaded. | 31 August 2021 11:59 CEST | Updated version of record | N/A |
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| article html file updated | 31 August 2021 11:55 CEST | Original file | N/A |
| article pdf uploaded. | 31 August 2021 11:54 CEST | Updated version of record | N/A |
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