| article html file updated | 31 August 2025 15:53 CEST | Update | https://www.mdpi.com/2223-7747/9/4/420 |
| article html file updated | 21 July 2022 00:22 CEST | Update | - |
| article html file updated | 9 May 2020 04:24 CEST | Update | - |
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| article pdf uploaded. | 30 March 2020 13:14 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/420/pdf |
| article xml uploaded. | 30 March 2020 13:14 CEST | Update | https://www.mdpi.com/2223-7747/9/4/420/xml |
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