| article html file updated | 1 September 2025 12:11 CEST | Update | https://www.mdpi.com/2297-8739/7/4/60 |
| article html file updated | 22 July 2022 22:58 CEST | Update | N/A |
| article html file updated | 29 October 2020 10:18 CET | Original file | N/A |
| article pdf uploaded. | 29 October 2020 10:17 CET | Version of Record | https://www.mdpi.com/2297-8739/7/4/60/pdf |
| article xml uploaded. | 29 October 2020 10:17 CET | Update | https://www.mdpi.com/2297-8739/7/4/60/xml |
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