| article html file updated | 31 August 2025 20:13 CEST | Update | https://www.mdpi.com/2227-7099/8/2/39 |
| article html file updated | 21 July 2022 04:38 CEST | Update | - |
| article html file updated | 17 June 2020 12:28 CEST | Original file | - |
| article pdf uploaded. | 17 June 2020 12:27 CEST | Updated version of record | https://www.mdpi.com/2227-7099/8/2/39/pdf |
| article xml uploaded. | 17 June 2020 12:27 CEST | Update | https://www.mdpi.com/2227-7099/8/2/39/xml |
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| article pdf uploaded. | 12 May 2020 16:22 CEST | Version of Record | https://www.mdpi.com/2227-7099/8/2/39/pdf-vor |
| article xml file uploaded | 12 May 2020 16:22 CEST | Original file | - |
