| article html file updated | 1 September 2025 07:16 CEST | Update | https://www.mdpi.com/1999-4915/12/9/971 |
| article html file updated | 22 July 2022 05:37 CEST | Update | - |
| article html file updated | 7 October 2020 08:54 CEST | Update | - |
| article html file updated | 3 September 2020 05:21 CEST | Original file | - |
| article pdf uploaded. | 3 September 2020 05:20 CEST | Updated version of record | https://www.mdpi.com/1999-4915/12/9/971/pdf |
| article xml uploaded. | 3 September 2020 05:20 CEST | Update | https://www.mdpi.com/1999-4915/12/9/971/xml |
| article xml file uploaded | 3 September 2020 05:20 CEST | Original file | - |
| article supplementary file uploaded. | 1 September 2020 14:28 CEST | - | https://www.mdpi.com/1999-4915/12/9/971#supplementary |
| article pdf uploaded. | 1 September 2020 14:27 CEST | Version of Record | https://www.mdpi.com/1999-4915/12/9/971/pdf-vor |
