| article html file updated | 13 August 2026 22:10 CEST | Update | https://www.mdpi.com/2079-9276/4/2/323 |
| article html file updated | 6 February 2020 19:20 CET | Update | N/A |
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| article pdf uploaded. | 3 June 2015 14:30 CEST | Version of Record | https://www.mdpi.com/2079-9276/4/2/323/pdf |
