| article html file updated | 29 August 2025 20:33 CEST | Update | https://www.mdpi.com/1424-8247/6/2/124 |
| article html file updated | 15 July 2022 22:08 CEST | Update | N/A |
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| article pdf uploaded. | 29 January 2013 14:23 CET | Updated version of record | https://www.mdpi.com/1424-8247/6/2/124/pdf |
| article pdf uploaded. | 28 January 2013 14:19 CET | Version of Record | https://www.mdpi.com/1424-8247/6/2/124/pdf-vor |
