| article html file updated | 24 December 2025 16:55 CET | Update | https://www.mdpi.com/1996-1073/13/1/168 |
| article html file updated | 31 August 2025 07:46 CEST | Update | N/A |
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| article html file updated | 30 December 2019 11:55 CET | Original file | N/A |
| article pdf uploaded. | 30 December 2019 11:34 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/168/pdf |
| article xml uploaded. | 30 December 2019 11:34 CET | Update | https://www.mdpi.com/1996-1073/13/1/168/xml |
| article xml file uploaded | 30 December 2019 11:34 CET | Original file | N/A |
