| article html file updated | 9 February 2020 02:39 CET | Update | https://www.mdpi.com/2075-4701/8/1/47 |
| article html file updated | 29 September 2019 19:45 CEST | Update | N/A |
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| article pdf uploaded. | 11 January 2018 07:42 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/47/pdf |