| article html file updated | 1 September 2025 14:27 CEST | Update | https://www.mdpi.com/2311-5637/6/4/117 |
| article html file updated | 23 July 2022 02:37 CEST | Update | - |
| article html file updated | 26 November 2020 09:17 CET | Original file | - |
| article pdf uploaded. | 26 November 2020 08:45 CET | Version of Record | https://www.mdpi.com/2311-5637/6/4/117/pdf |
| article xml uploaded. | 26 November 2020 08:45 CET | Update | https://www.mdpi.com/2311-5637/6/4/117/xml |
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