| article html file updated | 29 August 2025 20:56 CEST | Update | https://www.mdpi.com/2073-4360/6/2/346 |
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| article pdf uploaded. | 31 January 2014 13:36 CET | Updated version of record | https://www.mdpi.com/2073-4360/6/2/346/pdf |
| article pdf uploaded. | 30 January 2014 11:11 CET | Version of Record | https://www.mdpi.com/2073-4360/6/2/346/pdf-vor |
