| article html file updated | 19 August 2026 08:26 CEST | Update | https://www.mdpi.com/2227-9067/8/4/308 |
| article html file updated | 25 December 2025 08:40 CET | Update | N/A |
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| article html file updated | 22 April 2021 03:36 CEST | Update | N/A |
| article pdf uploaded. | 22 April 2021 03:35 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/308/pdf |
| article xml uploaded. | 22 April 2021 03:35 CEST | Update | https://www.mdpi.com/2227-9067/8/4/308/xml |
| article xml file uploaded | 22 April 2021 03:35 CEST | Update | N/A |
| article html file updated | 18 April 2021 10:44 CEST | Original file | N/A |
| article pdf uploaded. | 18 April 2021 10:43 CEST | Version of Record | https://www.mdpi.com/2227-9067/8/4/308/pdf-vor |
| article xml file uploaded | 18 April 2021 10:43 CEST | Original file | N/A |
