| article html file updated | 13 August 2026 06:15 CEST | Update | https://www.mdpi.com/2304-6740/2/4/591 |
| article html file updated | 6 February 2020 13:18 CET | Update | N/A |
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| article html file updated | 21 August 2015 00:57 CEST | Original file | N/A |
| article pdf uploaded. | 31 October 2014 13:42 CET | Version of Record | https://www.mdpi.com/2304-6740/2/4/591/pdf |
