| article html file updated | 30 August 2025 07:42 CEST | Update | https://www.mdpi.com/1996-1073/11/10/2721 |
| article html file updated | 17 July 2022 04:41 CEST | Update | - |
| article html file updated | 10 February 2020 15:20 CET | Update | - |
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| article html file updated | 31 October 2018 09:31 CET | Update | - |
| article pdf uploaded. | 22 October 2018 17:04 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/10/2721/pdf |
| article xml uploaded. | 22 October 2018 17:04 CEST | Update | https://www.mdpi.com/1996-1073/11/10/2721/xml |
| article xml file uploaded | 22 October 2018 17:04 CEST | Update | - |
| article html file updated | 22 October 2018 17:04 CEST | Original file | - |
| article pdf uploaded. | 11 October 2018 16:09 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/10/2721/pdf-vor |
| article pdf uploaded. | 11 October 2018 16:02 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/10/2721/pdf-vor |
| article xml file uploaded | 11 October 2018 16:02 CEST | Original file | - |
