| article html file updated | 24 December 2025 16:40 CET | Update | https://www.mdpi.com/1996-1073/12/24/4668 |
| article html file updated | 31 August 2025 06:04 CEST | Update | - |
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| article html file updated | 11 December 2019 06:01 CET | Update | - |
| article pdf uploaded. | 11 December 2019 05:59 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/24/4668/pdf |
| article xml uploaded. | 11 December 2019 05:59 CET | Update | https://www.mdpi.com/1996-1073/12/24/4668/xml |
| article xml file uploaded | 11 December 2019 05:59 CET | Update | - |
| article html file updated | 9 December 2019 07:49 CET | Original file | - |
| article pdf uploaded. | 9 December 2019 07:47 CET | Version of Record | https://www.mdpi.com/1996-1073/12/24/4668/pdf-vor |
| article xml uploaded. | 9 December 2019 07:47 CET | Update | - |
| article xml file uploaded | 9 December 2019 07:47 CET | Original file | - |
