| article html file updated | 1 September 2025 14:11 CEST | Update | https://www.mdpi.com/2227-9032/8/4/509 |
| article html file updated | 23 July 2022 02:12 CEST | Update | - |
| article html file updated | 27 November 2020 15:11 CET | Update | - |
| article pdf uploaded. | 27 November 2020 15:10 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/509/pdf |
| article xml uploaded. | 27 November 2020 15:10 CET | Update | https://www.mdpi.com/2227-9032/8/4/509/xml |
| article xml file uploaded | 27 November 2020 15:10 CET | Update | - |
| article html file updated | 27 November 2020 11:48 CET | Update | - |
| article pdf uploaded. | 27 November 2020 11:47 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/509/pdf-vor |
| article xml uploaded. | 27 November 2020 11:47 CET | Update | - |
| article xml file uploaded | 27 November 2020 11:47 CET | Update | - |
| article html file updated | 25 November 2020 02:46 CET | Original file | - |
| article pdf uploaded. | 25 November 2020 02:44 CET | Updated version of record | https://www.mdpi.com/2227-9032/8/4/509/pdf-vor |
| article xml uploaded. | 25 November 2020 02:44 CET | Update | - |
| article xml file uploaded | 25 November 2020 02:44 CET | Original file | - |
| article pdf uploaded. | 23 November 2020 13:56 CET | Version of Record | https://www.mdpi.com/2227-9032/8/4/509/pdf-vor |
