| article html file updated | 31 August 2025 03:09 CEST | Update | https://www.mdpi.com/1996-1073/12/20/3970 |
| article html file updated | 20 July 2022 01:20 CEST | Update | - |
| article html file updated | 14 February 2020 02:07 CET | Update | - |
| article html file updated | 29 October 2019 22:21 CET | Update | - |
| article html file updated | 18 October 2019 14:15 CEST | Original file | - |
| article pdf uploaded. | 18 October 2019 14:14 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/20/3970/pdf |
| article xml uploaded. | 18 October 2019 14:14 CEST | Update | https://www.mdpi.com/1996-1073/12/20/3970/xml |
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