| article html file updated | 30 August 2025 10:19 CEST | Update | https://www.mdpi.com/1996-1944/12/1/56 |
| article html file updated | 17 July 2022 18:33 CEST | Update | N/A |
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| article html file updated | 26 December 2018 18:49 CET | Update | N/A |
| article pdf uploaded. | 26 December 2018 09:10 CET | Updated version of record | https://www.mdpi.com/1996-1944/12/1/56/pdf |
| article xml uploaded. | 26 December 2018 09:10 CET | Update | https://www.mdpi.com/1996-1944/12/1/56/xml |
| article xml file uploaded | 26 December 2018 09:10 CET | Update | N/A |
| article html file updated | 24 December 2018 13:31 CET | Original file | N/A |
| article pdf uploaded. | 24 December 2018 12:43 CET | Version of Record | https://www.mdpi.com/1996-1944/12/1/56/pdf-vor |
| article xml uploaded. | 24 December 2018 12:43 CET | Update | N/A |
| article xml file uploaded | 24 December 2018 12:43 CET | Original file | N/A |