| article html file updated | 29 August 2025 21:28 CEST | Update | https://www.mdpi.com/1996-1073/8/1/656 |
| article html file updated | 15 July 2022 23:47 CEST | Update | N/A |
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| article html file updated | 21 August 2015 06:13 CEST | Original file | N/A |
| article pdf uploaded. | 20 January 2015 16:20 CET | Version of Record | https://www.mdpi.com/1996-1073/8/1/656/pdf |
