| article html file updated | 31 August 2025 03:20 CEST | Update | https://www.mdpi.com/2227-7102/9/4/259 |
| article html file updated | 21 August 2025 23:01 CEST | Update | - |
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| article html file updated | 29 October 2019 11:17 CET | Original file | - |
| article pdf uploaded. | 29 October 2019 11:16 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/4/259/pdf |
| article xml uploaded. | 29 October 2019 11:16 CET | Update | https://www.mdpi.com/2227-7102/9/4/259/xml |
| article xml file uploaded | 29 October 2019 11:16 CET | Update | - |
| article pdf uploaded. | 23 October 2019 12:05 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/4/259/pdf-vor |
| article xml file uploaded | 23 October 2019 12:05 CEST | Original file | - |
