| article html file updated | 1 September 2025 00:46 CEST | Update | https://www.mdpi.com/2227-9067/7/6/66 |
| article html file updated | 21 July 2022 22:04 CEST | Update | - |
| article html file updated | 6 July 2020 06:25 CEST | Update | - |
| article html file updated | 30 June 2020 09:14 CEST | Original file | - |
| article pdf uploaded. | 30 June 2020 09:12 CEST | Updated version of record | https://www.mdpi.com/2227-9067/7/6/66/pdf |
| article xml uploaded. | 30 June 2020 09:12 CEST | Update | https://www.mdpi.com/2227-9067/7/6/66/xml |
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| article pdf uploaded. | 25 June 2020 15:37 CEST | Updated version of record | https://www.mdpi.com/2227-9067/7/6/66/pdf-vor |
| article pdf uploaded. | 25 June 2020 15:37 CEST | Version of Record | https://www.mdpi.com/2227-9067/7/6/66/pdf-vor |
