| article html file updated | 13 August 2026 03:02 CEST | Update | https://www.mdpi.com/2227-9059/2/3/229 |
| article html file updated | 6 February 2020 11:40 CET | Update | N/A |
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| article pdf uploaded. | 21 August 2014 13:56 CEST | Version of Record | https://www.mdpi.com/2227-9059/2/3/229/pdf |
