| article html file updated | 2 September 2025 02:43 CEST | Update | https://www.mdpi.com/2218-6581/10/2/56 |
| article html file updated | 25 July 2022 10:45 CEST | Update | - |
| article html file updated | 4 August 2021 06:54 CEST | Update | - |
| article html file updated | 4 August 2021 06:52 CEST | Update | - |
| article html file updated | 11 April 2021 06:32 CEST | Update | - |
| article html file updated | 11 April 2021 06:21 CEST | Update | - |
| article html file updated | 7 April 2021 10:03 CEST | Update | - |
| article html file updated | 6 April 2021 12:28 CEST | Original file | - |
| article pdf uploaded. | 6 April 2021 12:26 CEST | Updated version of record | https://www.mdpi.com/2218-6581/10/2/56/pdf |
| article xml uploaded. | 6 April 2021 12:26 CEST | Update | https://www.mdpi.com/2218-6581/10/2/56/xml |
| article xml file uploaded | 6 April 2021 12:26 CEST | Original file | - |
| article pdf uploaded. | 4 April 2021 10:48 CEST | Version of Record | https://www.mdpi.com/2218-6581/10/2/56/pdf-vor |
