| article html file updated | 29 August 2025 21:25 CEST | Update | https://www.mdpi.com/1996-1073/8/1/111 |
| article html file updated | 15 July 2022 23:42 CEST | Update | N/A |
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| article html file updated | 21 August 2015 04:52 CEST | Original file | N/A |
| article pdf uploaded. | 25 December 2014 10:31 CET | Version of Record | https://www.mdpi.com/1996-1073/8/1/111/pdf |
