| article html file updated | 29 August 2025 21:51 CEST | Update | https://www.mdpi.com/2075-1680/4/2/194 |
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| article pdf uploaded. | 23 June 2015 10:01 CEST | Updated version of record | https://www.mdpi.com/2075-1680/4/2/194/pdf |
| article pdf uploaded. | 19 June 2015 15:54 CEST | Version of Record | https://www.mdpi.com/2075-1680/4/2/194/pdf-vor |
