| article html file updated | 29 August 2025 20:44 CEST | Update | https://www.mdpi.com/1999-4893/6/3/457 |
| article html file updated | 15 July 2022 22:28 CEST | Update | - |
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| article xml uploaded. | 28 July 2017 10:14 CEST | Update | https://www.mdpi.com/1999-4893/6/3/457/xml |
| article html file updated | 28 July 2017 10:14 CEST | Original file | - |
| article pdf uploaded. | 12 August 2013 16:05 CEST | Version of Record | https://www.mdpi.com/1999-4893/6/3/457/pdf |
