| article html file updated | 31 August 2025 16:41 CEST | Update | https://www.mdpi.com/2227-7099/8/2/30 |
| article html file updated | 21 July 2022 01:11 CEST | Update | - |
| article html file updated | 14 April 2020 03:31 CEST | Update | - |
| article pdf uploaded. | 14 April 2020 03:30 CEST | Updated version of record | https://www.mdpi.com/2227-7099/8/2/30/pdf |
| article xml uploaded. | 14 April 2020 03:30 CEST | Update | https://www.mdpi.com/2227-7099/8/2/30/xml |
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| article pdf uploaded. | 14 April 2020 03:29 CEST | Updated version of record | https://www.mdpi.com/2227-7099/8/2/30/pdf-vor |
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| article html file updated | 7 April 2020 12:43 CEST | Original file | - |
| article pdf uploaded. | 7 April 2020 12:42 CEST | Version of Record | https://www.mdpi.com/2227-7099/8/2/30/pdf-vor |
| article xml file uploaded | 7 April 2020 12:42 CEST | Original file | - |
