| article html file updated | 31 August 2025 22:15 CEST | Update | https://www.mdpi.com/2227-9091/8/2/56 |
| article html file updated | 21 July 2022 06:39 CEST | Update | - |
| article html file updated | 1 June 2020 11:39 CEST | Update | - |
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| article pdf uploaded. | 1 June 2020 11:38 CEST | Updated version of record | https://www.mdpi.com/2227-9091/8/2/56/pdf |
| article xml uploaded. | 1 June 2020 11:38 CEST | Update | https://www.mdpi.com/2227-9091/8/2/56/xml |
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