| article html file updated | 31 August 2025 14:02 CEST | Update | https://www.mdpi.com/2305-6290/4/1/6 |
| article html file updated | 20 July 2022 22:31 CEST | Update | - |
| article html file updated | 27 March 2020 07:35 CET | Original file | - |
| article pdf uploaded. | 27 March 2020 07:33 CET | Updated version of record | https://www.mdpi.com/2305-6290/4/1/6/pdf |
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| article pdf uploaded. | 10 March 2020 14:13 CET | Version of Record | https://www.mdpi.com/2305-6290/4/1/6/pdf-vor |
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