| article html file updated | 7 February 2020 04:19 CET | Update | https://www.mdpi.com/2077-1444/7/2/16 |
| article html file updated | 6 May 2019 00:54 CEST | Update | - |
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| article pdf uploaded. | 22 February 2016 09:45 CET | Updated version of record | https://www.mdpi.com/2077-1444/7/2/16/pdf |
| article xml uploaded. | 5 February 2016 13:09 CET | Original file | https://www.mdpi.com/2077-1444/7/2/16/xml |
| article pdf uploaded. | 5 February 2016 13:09 CET | Version of Record | https://www.mdpi.com/2077-1444/7/2/16/pdf-vor |
