| article html file updated | 15 August 2026 14:00 CEST | Update | https://www.mdpi.com/1996-1073/12/1/168 |
| article html file updated | 30 August 2025 10:37 CEST | Update | N/A |
| article html file updated | 17 July 2022 21:07 CEST | Update | N/A |
| article html file updated | 11 February 2020 06:48 CET | Update | N/A |
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| article html file updated | 16 January 2019 08:30 CET | Update | N/A |
| article html file updated | 7 January 2019 09:25 CET | Original file | N/A |
| article pdf uploaded. | 7 January 2019 09:24 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/1/168/pdf |
| article xml uploaded. | 7 January 2019 09:24 CET | Update | https://www.mdpi.com/1996-1073/12/1/168/xml |
| article xml file uploaded | 7 January 2019 09:24 CET | Update | N/A |
| article pdf uploaded. | 4 January 2019 16:52 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/1/168/pdf-vor |
| article pdf uploaded. | 4 January 2019 16:43 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/168/pdf-vor |
| article xml file uploaded | 4 January 2019 16:43 CET | Original file | N/A |
