| article html file updated | 13 August 2026 12:11 CEST | Update | https://www.mdpi.com/2077-0472/5/1/2 |
| article html file updated | 6 February 2020 15:29 CET | Update | N/A |
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| article pdf uploaded. | 27 January 2015 11:21 CET | Version of Record | https://www.mdpi.com/2077-0472/5/1/2/pdf |
