| article html file updated | 30 August 2025 23:11 CEST | Update | https://www.mdpi.com/1996-1073/12/15/2921 |
| article html file updated | 20 July 2022 06:10 CEST | Update | N/A |
| article html file updated | 13 February 2020 05:53 CET | Update | N/A |
| article html file updated | 12 August 2019 13:34 CEST | Update | N/A |
| article html file updated | 2 August 2019 20:03 CEST | Original file | N/A |
| article pdf uploaded. | 2 August 2019 14:45 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/15/2921/pdf |
| article xml uploaded. | 2 August 2019 14:45 CEST | Update | https://www.mdpi.com/1996-1073/12/15/2921/xml |
| article xml file uploaded | 2 August 2019 14:45 CEST | Update | N/A |
| article pdf uploaded. | 29 July 2019 16:35 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/15/2921/pdf-vor |
| article xml file uploaded | 29 July 2019 16:35 CEST | Original file | N/A |
