| article html file updated | 31 August 2025 01:34 CEST | Update | https://www.mdpi.com/2227-9067/6/9/104 |
| article html file updated | 21 August 2025 22:33 CEST | Update | - |
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| article html file updated | 25 September 2019 23:05 CEST | Update | - |
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| article pdf uploaded. | 20 September 2019 12:37 CEST | Updated version of record | https://www.mdpi.com/2227-9067/6/9/104/pdf |
| article xml uploaded. | 20 September 2019 12:37 CEST | Update | https://www.mdpi.com/2227-9067/6/9/104/xml |
| article xml file uploaded | 20 September 2019 12:37 CEST | Update | - |
| article pdf uploaded. | 17 September 2019 15:26 CEST | Version of Record | https://www.mdpi.com/2227-9067/6/9/104/pdf-vor |
| article xml file uploaded | 17 September 2019 15:26 CEST | Original file | - |
