| article html file updated | 31 August 2025 17:41 CEST | Update | https://www.mdpi.com/2226-4787/8/2/67 |
| article html file updated | 21 July 2022 02:09 CEST | Update | - |
| article html file updated | 8 October 2020 21:40 CEST | Update | - |
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| article pdf uploaded. | 5 June 2020 13:10 CEST | Updated version of record | https://www.mdpi.com/2226-4787/8/2/67/pdf |
| article xml uploaded. | 5 June 2020 13:10 CEST | Update | https://www.mdpi.com/2226-4787/8/2/67/xml |
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| article pdf uploaded. | 16 April 2020 19:39 CEST | Version of Record | https://www.mdpi.com/2226-4787/8/2/67/pdf-vor |
| article xml file uploaded | 16 April 2020 19:39 CEST | Original file | - |
