| article html file updated | 17 August 2026 01:11 CEST | Update | https://www.mdpi.com/2223-7747/9/2/159 |
| article html file updated | 31 August 2025 10:07 CEST | Update | N/A |
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| article html file updated | 6 March 2020 08:30 CET | Update | N/A |
| article html file updated | 29 February 2020 08:30 CET | Original file | N/A |
| article pdf uploaded. | 29 February 2020 08:29 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/159/pdf |
| article xml uploaded. | 29 February 2020 08:29 CET | Update | https://www.mdpi.com/2223-7747/9/2/159/xml |
| article xml file uploaded | 29 February 2020 08:29 CET | Update | N/A |
| article pdf uploaded. | 28 January 2020 12:55 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/159/pdf-vor |
| article xml file uploaded | 28 January 2020 12:55 CET | Original file | N/A |
