| article html file updated | 1 September 2025 03:49 CEST | Update | https://www.mdpi.com/2199-8531/6/3/52 |
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| article html file updated | 27 July 2020 05:21 CEST | Update | - |
| article pdf uploaded. | 27 July 2020 05:20 CEST | Updated version of record | https://www.mdpi.com/2199-8531/6/3/52/pdf |
| article xml uploaded. | 27 July 2020 05:20 CEST | Update | https://www.mdpi.com/2199-8531/6/3/52/xml |
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