| article html file updated | 7 September 2025 00:48 CEST | Update | https://www.mdpi.com/2218-1997/7/9/344 |
| article html file updated | 22 August 2025 01:21 CEST | Update | - |
| article html file updated | 30 July 2022 05:36 CEST | Update | - |
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| article pdf uploaded. | 14 September 2021 12:33 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/9/344/pdf |
| article xml uploaded. | 14 September 2021 12:33 CEST | Update | https://www.mdpi.com/2218-1997/7/9/344/xml |
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| article pdf uploaded. | 13 September 2021 15:03 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/9/344/pdf-vor |
