| article html file updated | 31 August 2025 06:51 CEST | Update | https://www.mdpi.com/1996-1073/13/1/9 |
| article html file updated | 19 July 2022 21:25 CEST | Update | N/A |
| article html file updated | 14 February 2020 19:39 CET | Update | N/A |
| article html file updated | 16 January 2020 07:56 CET | Update | N/A |
| article html file updated | 24 December 2019 10:54 CET | Original file | N/A |
| article pdf uploaded. | 24 December 2019 10:53 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/1/9/pdf |
| article xml uploaded. | 24 December 2019 10:53 CET | Update | https://www.mdpi.com/1996-1073/13/1/9/xml |
| article xml file uploaded | 24 December 2019 10:53 CET | Update | N/A |
| article pdf uploaded. | 18 December 2019 09:58 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/9/pdf-vor |
| article xml file uploaded | 18 December 2019 09:58 CET | Original file | N/A |
