| article html file updated | 1 September 2025 17:12 CEST | Update | https://www.mdpi.com/2218-1997/7/1/4 |
| article html file updated | 23 July 2022 08:00 CEST | Update | - |
| article html file updated | 5 January 2021 01:49 CET | Update | - |
| article pdf uploaded. | 5 January 2021 01:47 CET | Updated version of record | https://www.mdpi.com/2218-1997/7/1/4/pdf |
| article xml uploaded. | 5 January 2021 01:47 CET | Update | https://www.mdpi.com/2218-1997/7/1/4/xml |
| article xml file uploaded | 5 January 2021 01:47 CET | Update | - |
| article html file updated | 4 January 2021 02:05 CET | Update | - |
| article pdf uploaded. | 4 January 2021 02:04 CET | Updated version of record | https://www.mdpi.com/2218-1997/7/1/4/pdf-vor |
| article xml file uploaded | 4 January 2021 02:04 CET | Update | - |
| article html file updated | 30 December 2020 14:35 CET | Update | - |
| article pdf uploaded. | 30 December 2020 14:33 CET | Updated version of record | https://www.mdpi.com/2218-1997/7/1/4/pdf-vor |
| article xml uploaded. | 30 December 2020 14:33 CET | Update | - |
| article xml file uploaded | 30 December 2020 14:33 CET | Update | - |
| article html file updated | 29 December 2020 14:50 CET | Original file | - |
| article pdf uploaded. | 29 December 2020 14:49 CET | Updated version of record | https://www.mdpi.com/2218-1997/7/1/4/pdf-vor |
| article xml uploaded. | 29 December 2020 14:49 CET | Update | - |
| article xml file uploaded | 29 December 2020 14:49 CET | Original file | - |
| article pdf uploaded. | 28 December 2020 16:30 CET | Version of Record | https://www.mdpi.com/2218-1997/7/1/4/pdf-vor |
