| article html file updated | 31 August 2025 04:03 CEST | Update | https://www.mdpi.com/1996-1073/12/21/4208 |
| article html file updated | 20 July 2022 00:18 CEST | Update | N/A |
| article html file updated | 14 February 2020 06:41 CET | Update | N/A |
| article html file updated | 15 November 2019 09:35 CET | Update | N/A |
| article html file updated | 4 November 2019 13:28 CET | Original file | N/A |
| article pdf uploaded. | 4 November 2019 13:26 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4208/pdf |
| article xml uploaded. | 4 November 2019 13:26 CET | Update | https://www.mdpi.com/1996-1073/12/21/4208/xml |
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