| article html file updated | 24 December 2025 17:27 CET | Update | https://www.mdpi.com/2223-7747/9/2/223 |
| article html file updated | 31 August 2025 11:10 CEST | Update | - |
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| article html file updated | 6 March 2020 09:09 CET | Update | - |
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| article pdf uploaded. | 1 March 2020 04:37 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/223/pdf |
| article xml uploaded. | 1 March 2020 04:37 CET | Update | https://www.mdpi.com/2223-7747/9/2/223/xml |
| article xml file uploaded | 1 March 2020 04:37 CET | Update | - |
| article pdf uploaded. | 9 February 2020 10:31 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/223/pdf-vor |
| article xml file uploaded | 9 February 2020 10:31 CET | Original file | - |
