| article html file updated | 26 December 2025 13:39 CET | Update | https://www.mdpi.com/2218-1989/12/1/2 |
| article html file updated | 7 September 2025 09:36 CEST | Update | N/A |
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| article html file updated | 22 December 2021 11:19 CET | Original file | N/A |
| article pdf uploaded. | 22 December 2021 11:17 CET | Updated version of record | https://www.mdpi.com/2218-1989/12/1/2/pdf |
| article xml uploaded. | 22 December 2021 11:17 CET | Update | https://www.mdpi.com/2218-1989/12/1/2/xml |
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| article supplementary file uploaded. | 21 December 2021 14:01 CET | - | https://www.mdpi.com/2218-1989/12/1/2#supplementary |
| article pdf uploaded. | 21 December 2021 14:01 CET | Version of Record | https://www.mdpi.com/2218-1989/12/1/2/pdf-vor |
