| article html file updated | 20 August 2026 22:00 CEST | Update | https://www.mdpi.com/2226-471X/6/4/189 |
| article html file updated | 7 September 2025 05:22 CEST | Update | N/A |
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| article html file updated | 22 November 2021 03:39 CET | Update | N/A |
| article pdf uploaded. | 22 November 2021 03:37 CET | Updated version of record | https://www.mdpi.com/2226-471X/6/4/189/pdf |
| article xml uploaded. | 22 November 2021 03:37 CET | Update | https://www.mdpi.com/2226-471X/6/4/189/xml |
| article xml file uploaded | 22 November 2021 03:37 CET | Update | N/A |
| article html file updated | 17 November 2021 15:09 CET | Original file | N/A |
| article pdf uploaded. | 17 November 2021 15:07 CET | Version of Record | https://www.mdpi.com/2226-471X/6/4/189/pdf-vor |
| article xml uploaded. | 17 November 2021 15:07 CET | Update | N/A |
| article xml file uploaded | 17 November 2021 15:07 CET | Original file | N/A |
