| article html file updated | 31 August 2025 08:41 CEST | Update | https://www.mdpi.com/2227-7390/8/1/109 |
| article html file updated | 20 July 2022 17:12 CEST | Update | - |
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| article pdf uploaded. | 10 January 2020 12:23 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/1/109/pdf |
| article xml uploaded. | 10 January 2020 12:23 CET | Update | https://www.mdpi.com/2227-7390/8/1/109/xml |
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