| article html file updated | 31 August 2025 17:48 CEST | Update | https://www.mdpi.com/2223-7747/9/4/520 |
| article html file updated | 21 July 2022 02:16 CEST | Update | - |
| article html file updated | 9 May 2020 04:35 CEST | Update | - |
| article html file updated | 17 April 2020 16:22 CEST | Update | - |
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| article pdf uploaded. | 17 April 2020 16:20 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/520/pdf |
| article xml uploaded. | 17 April 2020 16:20 CEST | Update | https://www.mdpi.com/2223-7747/9/4/520/xml |
| article xml file uploaded | 17 April 2020 16:20 CEST | Update | - |
| article supplementary file uploaded. | 17 April 2020 16:20 CEST | - | https://www.mdpi.com/2223-7747/9/4/520#supplementary |
| article xml file uploaded | 17 April 2020 16:20 CEST | Original file | - |
