| article html file updated | 12 August 2026 20:01 CEST | Update | https://www.mdpi.com/2224-2708/2/3/589 |
| article html file updated | 6 February 2020 03:56 CET | Update | N/A |
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| article pdf uploaded. | 22 August 2013 11:15 CEST | Version of Record | https://www.mdpi.com/2224-2708/2/3/589/pdf |
