| article html file updated | 31 August 2025 04:00 CEST | Update | https://www.mdpi.com/1996-1073/12/21/4199 |
| article html file updated | 20 July 2022 00:21 CEST | Update | - |
| article html file updated | 14 February 2020 06:30 CET | Update | - |
| article html file updated | 15 November 2019 09:30 CET | Update | - |
| article html file updated | 8 November 2019 07:16 CET | Update | - |
| article xml uploaded. | 8 November 2019 07:14 CET | Update | https://www.mdpi.com/1996-1073/12/21/4199/xml |
| article xml uploaded. | 8 November 2019 07:14 CET | Update | - |
| article xml uploaded. | 8 November 2019 07:14 CET | Update | - |
| article xml uploaded. | 8 November 2019 07:14 CET | Update | - |
| article xml uploaded. | 8 November 2019 07:14 CET | Update | - |
| article pdf uploaded. | 8 November 2019 07:14 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4199/pdf |
| article html file updated | 8 November 2019 02:59 CET | Update | - |
| article pdf uploaded. | 8 November 2019 02:57 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4199/pdf-vor |
| article xml uploaded. | 8 November 2019 02:57 CET | Update | - |
| article xml file uploaded | 8 November 2019 02:57 CET | Update | - |
| article html file updated | 4 November 2019 06:41 CET | Original file | - |
| article pdf uploaded. | 4 November 2019 06:39 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4199/pdf-vor |
| article xml uploaded. | 4 November 2019 06:39 CET | Update | - |
| article xml file uploaded | 4 November 2019 06:39 CET | Original file | - |
