| article html file updated | 1 September 2025 16:00 CEST | Update | https://www.mdpi.com/2227-9032/8/4/561 |
| article html file updated | 23 July 2022 05:07 CEST | Update | - |
| article html file updated | 18 December 2020 12:31 CET | Update | - |
| article pdf uploaded. | 18 December 2020 11:04 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/561/pdf |
| article xml uploaded. | 18 December 2020 11:04 CET | Update | https://www.mdpi.com/2227-9032/8/4/561/xml |
| article xml file uploaded | 18 December 2020 11:04 CET | Update | - |
| article html file updated | 15 December 2020 08:38 CET | Update | - |
| article pdf uploaded. | 15 December 2020 08:37 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/561/pdf-vor |
| article xml uploaded. | 15 December 2020 08:37 CET | Update | - |
| article xml file uploaded | 15 December 2020 08:37 CET | Update | - |
| article html file updated | 14 December 2020 15:44 CET | Original file | - |
| article pdf uploaded. | 14 December 2020 15:43 CET | Version of Record | https://www.mdpi.com/2227-9032/8/4/561/pdf-vor |
| article xml uploaded. | 14 December 2020 15:43 CET | Update | - |
| article xml file uploaded | 14 December 2020 15:43 CET | Original file | - |
