| article html file updated | 24 December 2025 16:18 CET | Update | https://www.mdpi.com/1996-1073/12/21/4171 |
| article html file updated | 31 August 2025 03:52 CEST | Update | N/A |
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| article html file updated | 15 November 2019 09:16 CET | Update | N/A |
| article html file updated | 4 November 2019 11:03 CET | Update | N/A |
| article pdf uploaded. | 4 November 2019 11:01 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4171/pdf |
| article xml uploaded. | 4 November 2019 11:01 CET | Update | https://www.mdpi.com/1996-1073/12/21/4171/xml |
| article xml file uploaded | 4 November 2019 11:01 CET | Update | N/A |
| article html file updated | 1 November 2019 10:15 CET | Original file | N/A |
| article pdf uploaded. | 1 November 2019 10:13 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4171/pdf-vor |
| article xml uploaded. | 1 November 2019 10:13 CET | Update | N/A |
| article xml file uploaded | 1 November 2019 10:13 CET | Original file | N/A |
