| article html file updated | 31 August 2025 17:46 CEST | Update | https://www.mdpi.com/2220-9964/9/4/252 |
| article html file updated | 21 July 2022 02:14 CEST | Update | - |
| article html file updated | 27 April 2020 07:15 CEST | Original file | - |
| article pdf uploaded. | 27 April 2020 07:14 CEST | Updated version of record | https://www.mdpi.com/2220-9964/9/4/252/pdf |
| article xml uploaded. | 27 April 2020 07:14 CEST | Update | https://www.mdpi.com/2220-9964/9/4/252/xml |
| article xml file uploaded | 27 April 2020 07:14 CEST | Update | - |
| article pdf uploaded. | 17 April 2020 15:23 CEST | Version of Record | https://www.mdpi.com/2220-9964/9/4/252/pdf-vor |
| article xml file uploaded | 17 April 2020 15:23 CEST | Original file | - |
