| article html file updated | 1 September 2025 11:13 CEST | Update | https://www.mdpi.com/2226-471X/5/4/39 |
| article html file updated | 22 July 2022 21:32 CEST | Update | - |
| article html file updated | 18 October 2020 13:38 CEST | Original file | - |
| article pdf uploaded. | 18 October 2020 13:37 CEST | Version of Record | https://www.mdpi.com/2226-471X/5/4/39/pdf |
| article xml uploaded. | 18 October 2020 13:37 CEST | Update | https://www.mdpi.com/2226-471X/5/4/39/xml |
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