| article html file updated | 31 August 2025 09:16 CEST | Update | https://www.mdpi.com/2223-7747/9/1/117 |
| article html file updated | 20 July 2022 17:47 CEST | Update | - |
| article html file updated | 15 February 2020 03:50 CET | Update | - |
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| article html file updated | 17 January 2020 11:32 CET | Original file | - |
| article pdf uploaded. | 17 January 2020 11:30 CET | Version of Record | https://www.mdpi.com/2223-7747/9/1/117/pdf |
| article xml uploaded. | 17 January 2020 11:30 CET | Update | https://www.mdpi.com/2223-7747/9/1/117/xml |
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