| article html file updated | 31 August 2025 04:09 CEST | Update | https://www.mdpi.com/2075-1702/7/4/69 |
| article html file updated | 20 July 2022 00:12 CEST | Update | - |
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| article html file updated | 6 November 2019 10:47 CET | Original file | - |
| article pdf uploaded. | 6 November 2019 10:44 CET | Version of Record | https://www.mdpi.com/2075-1702/7/4/69/pdf |
| article xml uploaded. | 6 November 2019 10:44 CET | Update | https://www.mdpi.com/2075-1702/7/4/69/xml |
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