| article html file updated | 31 August 2025 12:02 CEST | Update | https://www.mdpi.com/2227-9709/7/1/6 |
| article html file updated | 20 July 2022 20:33 CEST | Update | - |
| article html file updated | 25 March 2020 13:19 CET | Original file | - |
| article pdf uploaded. | 25 March 2020 13:18 CET | Updated version of record | https://www.mdpi.com/2227-9709/7/1/6/pdf |
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