| article html file updated | 7 February 2020 08:23 CET | Update | https://www.mdpi.com/2079-4991/6/5/87 |
| article html file updated | 5 May 2019 16:25 CEST | Update | - |
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| article html file updated | 24 February 2017 10:22 CET | Update | - |
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| article html file updated | 9 May 2016 10:58 CEST | Original file | - |
| article xml uploaded. | 9 May 2016 10:57 CEST | Original file | https://www.mdpi.com/2079-4991/6/5/87/xml |
| article pdf uploaded. | 9 May 2016 10:57 CEST | Version of Record | https://www.mdpi.com/2079-4991/6/5/87/pdf |
