| article html file updated | 31 August 2025 07:05 CEST | Update | https://www.mdpi.com/1996-1073/13/1/51 |
| article html file updated | 19 July 2022 21:11 CEST | Update | N/A |
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| article html file updated | 25 December 2019 11:13 CET | Update | N/A |
| article pdf uploaded. | 25 December 2019 11:11 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/1/51/pdf |
| article xml uploaded. | 25 December 2019 11:11 CET | Update | https://www.mdpi.com/1996-1073/13/1/51/xml |
| article xml file uploaded | 25 December 2019 11:11 CET | Update | N/A |
| article html file updated | 20 December 2019 12:22 CET | Original file | N/A |
| article pdf uploaded. | 20 December 2019 12:20 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/51/pdf-vor |
| article xml uploaded. | 20 December 2019 12:20 CET | Update | N/A |
| article xml file uploaded | 20 December 2019 12:20 CET | Original file | N/A |
