| article html file updated | 30 August 2025 14:52 CEST | Update | https://www.mdpi.com/1996-1944/12/9/1521 |
| article html file updated | 19 July 2022 18:24 CEST | Update | N/A |
| article html file updated | 12 February 2020 11:05 CET | Update | N/A |
| article html file updated | 19 October 2019 19:48 CEST | Update | N/A |
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| article html file updated | 9 May 2019 20:14 CEST | Original file | N/A |
| article pdf uploaded. | 9 May 2019 13:02 CEST | Version of Record | https://www.mdpi.com/1996-1944/12/9/1521/pdf |
| article xml uploaded. | 9 May 2019 13:02 CEST | Update | https://www.mdpi.com/1996-1944/12/9/1521/xml |
| article xml file uploaded | 9 May 2019 13:02 CEST | Original file | N/A |
