| article html file updated | 14 August 2026 21:02 CEST | Update | https://www.mdpi.com/2079-8954/6/1/2 |
| article html file updated | 9 February 2020 02:56 CET | Update | N/A |
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| article pdf uploaded. | 13 January 2018 08:27 CET | Updated version of record | https://www.mdpi.com/2079-8954/6/1/2/pdf |
| article pdf uploaded. | 12 January 2018 18:51 CET | Version of Record | https://www.mdpi.com/2079-8954/6/1/2/pdf-vor |
