| article html file updated | 25 December 2025 01:47 CET | Update | https://www.mdpi.com/2218-1997/7/1/13 |
| article html file updated | 1 September 2025 18:25 CEST | Update | N/A |
| article html file updated | 23 July 2022 14:28 CEST | Update | N/A |
| article html file updated | 12 January 2021 12:13 CET | Original file | N/A |
| article pdf uploaded. | 12 January 2021 12:11 CET | Version of Record | https://www.mdpi.com/2218-1997/7/1/13/pdf |
| article xml uploaded. | 12 January 2021 12:11 CET | Update | https://www.mdpi.com/2218-1997/7/1/13/xml |
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