| article html file updated | 31 August 2025 22:50 CEST | Update | https://www.mdpi.com/2223-7747/9/6/721 |
| article html file updated | 21 July 2022 20:05 CEST | Update | - |
| article html file updated | 6 July 2020 12:56 CEST | Update | - |
| article html file updated | 8 June 2020 09:13 CEST | Update | - |
| article pdf uploaded. | 8 June 2020 09:11 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/6/721/pdf |
| article xml uploaded. | 8 June 2020 09:11 CEST | Update | https://www.mdpi.com/2223-7747/9/6/721/xml |
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| article html file updated | 6 June 2020 11:06 CEST | Original file | - |
| article pdf uploaded. | 6 June 2020 11:04 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/6/721/pdf-vor |
| article xml file uploaded | 6 June 2020 11:04 CEST | Original file | - |
