| article html file updated | 29 August 2025 20:44 CEST | Update | https://www.mdpi.com/1424-8247/6/8/929 |
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| article pdf uploaded. | 13 August 2013 08:28 CEST | Updated version of record | https://www.mdpi.com/1424-8247/6/8/929/pdf |
| article pdf uploaded. | 6 August 2013 17:14 CEST | Version of Record | https://www.mdpi.com/1424-8247/6/8/929/pdf-vor |
