| article html file updated | 31 August 2025 21:01 CEST | Update | https://www.mdpi.com/2227-9032/8/2/137 |
| article html file updated | 21 July 2022 05:25 CEST | Update | - |
| article html file updated | 24 May 2020 03:58 CEST | Update | - |
| article pdf uploaded. | 24 May 2020 03:57 CEST | Updated version of record | https://www.mdpi.com/2227-9032/8/2/137/pdf |
| article xml uploaded. | 24 May 2020 03:57 CEST | Update | https://www.mdpi.com/2227-9032/8/2/137/xml |
| article xml file uploaded | 24 May 2020 03:56 CEST | Update | - |
| article html file updated | 20 May 2020 12:21 CEST | Original file | - |
| article pdf uploaded. | 20 May 2020 12:20 CEST | Version of Record | https://www.mdpi.com/2227-9032/8/2/137/pdf-vor |
| article xml file uploaded | 20 May 2020 12:20 CEST | Original file | - |
