| article html file updated | 31 August 2025 03:45 CEST | Update | https://www.mdpi.com/1996-1073/12/21/4138 |
| article html file updated | 20 July 2022 00:38 CEST | Update | N/A |
| article html file updated | 14 February 2020 05:11 CET | Update | N/A |
| article html file updated | 15 November 2019 08:44 CET | Update | N/A |
| article html file updated | 5 November 2019 08:05 CET | Update | N/A |
| article pdf uploaded. | 5 November 2019 08:04 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4138/pdf |
| article xml uploaded. | 5 November 2019 08:04 CET | Update | https://www.mdpi.com/1996-1073/12/21/4138/xml |
| article xml file uploaded | 5 November 2019 08:03 CET | Update | N/A |
| article html file updated | 30 October 2019 10:59 CET | Original file | N/A |
| article pdf uploaded. | 30 October 2019 10:55 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4138/pdf-vor |
| article xml uploaded. | 30 October 2019 10:55 CET | Update | N/A |
| article xml file uploaded | 30 October 2019 10:55 CET | Original file | N/A |
