| article html file updated | 8 February 2020 15:36 CET | Update | https://www.mdpi.com/2079-4983/8/3/40 |
| article html file updated | 27 September 2019 00:21 CEST | Update | N/A |
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| article pdf uploaded. | 7 September 2017 15:36 CEST | Version of Record | https://www.mdpi.com/2079-4983/8/3/40/pdf |