| article html file updated | 30 August 2025 20:38 CEST | Update | https://www.mdpi.com/2075-4701/9/6/639 |
| article html file updated | 19 July 2022 19:32 CEST | Update | - |
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| article html file updated | 24 June 2019 11:29 CEST | Original file | - |
| article pdf uploaded. | 24 June 2019 11:26 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/6/639/pdf |
| article xml uploaded. | 24 June 2019 11:26 CEST | Update | https://www.mdpi.com/2075-4701/9/6/639/xml |
| article xml file uploaded | 24 June 2019 11:26 CEST | Update | - |
| article pdf uploaded. | 2 June 2019 11:15 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/6/639/pdf-vor |
| article xml file uploaded | 2 June 2019 11:15 CEST | Original file | - |
