| article html file updated | 31 August 2025 20:59 CEST | Update | https://www.mdpi.com/2199-8531/6/2/39 |
| article html file updated | 21 July 2022 05:24 CEST | Update | N/A |
| article html file updated | 20 May 2020 10:27 CEST | Original file | N/A |
| article pdf uploaded. | 20 May 2020 10:26 CEST | Version of Record | https://www.mdpi.com/2199-8531/6/2/39/pdf |
| article xml uploaded. | 20 May 2020 10:26 CEST | Update | https://www.mdpi.com/2199-8531/6/2/39/xml |
| article xml file uploaded | 20 May 2020 10:26 CEST | Original file | N/A |
