| article html file updated | 31 August 2025 10:27 CEST | Update | https://www.mdpi.com/2223-7747/9/2/176 |
| article html file updated | 20 July 2022 18:58 CEST | Update | - |
| article html file updated | 6 March 2020 08:40 CET | Update | - |
| article html file updated | 1 March 2020 12:13 CET | Original file | - |
| article pdf uploaded. | 1 March 2020 12:09 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/176/pdf |
| article xml uploaded. | 1 March 2020 12:09 CET | Update | https://www.mdpi.com/2223-7747/9/2/176/xml |
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| article pdf uploaded. | 1 February 2020 13:12 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/176/pdf-vor |
| article xml file uploaded | 1 February 2020 13:12 CET | Original file | - |
