| article html file updated | 29 August 2025 20:34 CEST | Update | https://www.mdpi.com/1996-1073/6/3/1314 |
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| article pdf uploaded. | 6 March 2013 16:27 CET | Updated version of record | https://www.mdpi.com/1996-1073/6/3/1314/pdf |
| article pdf uploaded. | 4 March 2013 16:57 CET | Version of Record | https://www.mdpi.com/1996-1073/6/3/1314/pdf-vor |
