| article html file updated | 13 August 2026 07:21 CEST | Update | https://www.mdpi.com/2304-6732/1/4/442 |
| article html file updated | 6 February 2020 13:57 CET | Update | N/A |
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| article pdf uploaded. | 26 November 2014 15:23 CET | Version of Record | https://www.mdpi.com/2304-6732/1/4/442/pdf |
