| article html file updated | 31 August 2025 18:16 CEST | Update | https://www.mdpi.com/2223-7747/9/4/544 |
| article html file updated | 21 July 2022 02:43 CEST | Update | N/A |
| article html file updated | 9 May 2020 04:38 CEST | Update | N/A |
| article html file updated | 27 April 2020 06:32 CEST | Original file | N/A |
| article pdf uploaded. | 27 April 2020 06:30 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/544/pdf |
| article xml uploaded. | 27 April 2020 06:30 CEST | Update | https://www.mdpi.com/2223-7747/9/4/544/xml |
| article xml file uploaded | 27 April 2020 06:30 CEST | Update | N/A |
| article pdf uploaded. | 22 April 2020 19:10 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/544/pdf-vor |
| article xml file uploaded | 22 April 2020 19:10 CEST | Original file | N/A |
