| article html file updated | 7 February 2020 07:16 CET | Update | https://www.mdpi.com/2075-4698/6/2/12 |
| article html file updated | 5 May 2019 18:39 CEST | Update | - |
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| article html file updated | 1 July 2016 12:50 CEST | Update | - |
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| article pdf uploaded. | 14 April 2016 13:35 CEST | Version of Record | https://www.mdpi.com/2075-4698/6/2/12/pdf |
