| article html file updated | 21 August 2026 04:53 CEST | Update | https://www.mdpi.com/1996-1073/15/1/68 |
| article html file updated | 30 July 2022 23:57 CEST | Update | N/A |
| article html file updated | 23 December 2021 07:46 CET | Original file | N/A |
| article pdf uploaded. | 23 December 2021 07:44 CET | Updated version of record | https://www.mdpi.com/1996-1073/15/1/68/pdf |
| article xml uploaded. | 23 December 2021 07:44 CET | Update | https://www.mdpi.com/1996-1073/15/1/68/xml |
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| article pdf uploaded. | 22 December 2021 17:28 CET | Version of Record | https://www.mdpi.com/1996-1073/15/1/68/pdf-vor |
